Doctrine Exception Error

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At a point this AM an 8.2.1 site refused to serve any page, providing the following error instead. The webhost states no environment changes where made and restoring all files and database from a working prior version does not help. I have manually cleared the cache folder also. Any suggestions would be very gratefully received!

Whoops \ Exception \ ErrorException (E_ERROR)
Cannot use object of type ReflectionClass as array
/public_html/concrete/vendor/doctrine/instantiator/src/Doctrine/Instantiator/Instantiator.php

Environment:

Concrete5
Version 8.2.1
Installed Version 8.2.1
Concrete Configuration
concrete.version 8.2.1
concrete.version_installed 8.2.1
concrete.version_db 20170802000000
concrete.installed true
concrete.locale en_GB
concrete.charset UTF-8
concrete.maintenance_mode false
concrete.debug.display_errors true
concrete.debug.detail debug
concrete.proxy.host null
concrete.proxy.port null
concrete.proxy.user null
concrete.proxy.password null
concrete.upload.extensions *.flv;*.jpg;*.gif;*.jpeg;*.ico;*.docx;*.xla;*.png;*.psd;*.swf;*.doc;*.txt;*.xls;*.xlsx;*.csv;*.pdf;*.tiff;*.rtf;*.m4a;*.mov;*.wmv;*.mpeg;*.mpg;*.wav;*.3gp;*.avi;*.m4v;*.mp4;*.mp3;*.qt;*.ppt;*.pptx;*.kml;*.xml;*.svg;*.webm;*.ogg;*.ogv
concrete.interface.panel.page_relations false
concrete.mail.method PHP_MAIL
concrete.mail.methods.smtp.server
concrete.mail.methods.smtp.port
concrete.mail.methods.smtp.username
concrete.mail.methods.smtp.password
concrete.mail.methods.smtp.encryption
concrete.mail.methods.smtp.messages_per_connection null
concrete.cache.enabled true
concrete.cache.lifetime 21600
concrete.cache.overrides false
concrete.cache.blocks false
concrete.cache.assets false
concrete.cache.theme_css false
concrete.cache.pages 0
concrete.cache.doctrine_dev_mode false
concrete.cache.full_page_lifetime default
concrete.cache.full_page_lifetime_value null
concrete.cache.full_contents_assets_hash false
concrete.cache.directory /home/public_html/application/files/cache
concrete.cache.directory_relative null
concrete.cache.page.directory /home/public_html/application/files/cache/pages
concrete.cache.page.adapter file
concrete.cache.levels.overrides.drivers.core_ephemeral.class \Stash\Driver\Ephemeral
concrete.cache.levels.overrides.drivers.core_filesystem.class Concrete\Core\Cache\Driver\FileSystemStashDriver
concrete.cache.levels.overrides.drivers.core_filesystem.options.path /home/public_html/application/files/cache
concrete.cache.levels.overrides.drivers.core_filesystem.options.dirPermissions 493
concrete.cache.levels.overrides.drivers.core_filesystem.options.filePermissions 420
concrete.cache.levels.expensive.drivers.core_ephemeral.class \Stash\Driver\Ephemeral
concrete.cache.levels.expensive.drivers.core_filesystem.class Concrete\Core\Cache\Driver\FileSystemStashDriver
concrete.cache.levels.expensive.drivers.core_filesystem.options.path /home/public_html/application/files/cache
concrete.cache.levels.expensive.drivers.core_filesystem.options.dirPermissions 493
concrete.cache.levels.expensive.drivers.core_filesystem.options.filePermissions 420
concrete.cache.levels.object.drivers.core_ephemeral.class \Stash\Driver\Ephemeral
concrete.cache.clear.thumbnails true
concrete.design.enable_custom true
concrete.design.enable_layouts true
concrete.log.emails true
concrete.log.errors true
concrete.log.spam false
concrete.log.queries.log false
concrete.log.queries.clear_on_reload false
concrete.jobs.enable_scheduling true
concrete.filesystem.temp_directory null
concrete.filesystem.permissions.file 420
concrete.filesystem.permissions.directory 493
concrete.email.enabled true
concrete.email.default.address concrete5-noreply@concrete5
concrete.email.default.name
concrete.email.form_block.address false
concrete.email.forgot_password.address null
concrete.email.forgot_password.name null
concrete.email.validate_registration.address null
concrete.email.validate_registration.name null
concrete.marketplace.enabled true
concrete.marketplace.request_timeout 30
concrete.marketplace.token null
concrete.marketplace.site_token null
concrete.marketplace.intelligent_search true
concrete.marketplace.log_requests false
concrete.external.intelligent_search_help true
concrete.external.news_overlay false
concrete.external.news true
concrete.misc.user_timezones false
concrete.misc.package_backup_directory /home/public_html/application/files/trash
concrete.misc.enable_progressive_page_reindex true
concrete.misc.mobile_theme_id 0
concrete.misc.sitemap_approve_immediately true
concrete.misc.enable_translate_locale_en_us false
concrete.misc.page_search_index_lifetime 259200
concrete.misc.enable_trash_can true
concrete.misc.app_version_display_in_header true
concrete.misc.default_jpeg_image_compression 80
concrete.misc.default_png_image_compression 9
concrete.misc.default_thumbnail_format auto
concrete.misc.basic_thumbnailer_generation_strategy now
concrete.misc.help_overlay true
concrete.misc.require_version_comments false
concrete.misc.login_redirect DESKTOP
concrete.misc.access_entity_updated 1503052319
concrete.misc.latest_version 8.2.1
concrete.misc.do_page_reindex_check false
concrete.theme.compress_preprocessor_output false
concrete.theme.generate_less_sourcemap false
concrete.updates.enable_auto_update_packages false
concrete.updates.enable_permissions_protection true
concrete.updates.check_threshold 172800
concrete.updates.services.get_available_updateshttp://www.concrete5.org/tools/update_core...
concrete.updates.services.inspect_updatehttp://www.concrete5.org/tools/inspect_update...
concrete.paths.trash /!trash
concrete.paths.drafts /!drafts
concrete.icons.page_template.width 120
concrete.icons.page_template.height 90
concrete.icons.theme_thumbnail.width 120
concrete.icons.theme_thumbnail.height 90
concrete.icons.file_manager_listing.handle file_manager_listing
concrete.icons.file_manager_listing.width 60
concrete.icons.file_manager_listing.height 60
concrete.icons.file_manager_detail.handle file_manager_detail
concrete.icons.file_manager_detail.width 400
concrete.icons.user_avatar.width 80
concrete.icons.user_avatar.height 80
concrete.icons.user_avatar.default /concrete/images/avatar_none.png
concrete.file_manager.images.use_exif_data_to_rotate_images false
concrete.file_manager.images.manipulation_library gd
concrete.file_manager.results 10
concrete.search_users.results 10
concrete.sitemap_xml.file sitemap.xml
concrete.sitemap_xml.frequency weekly
concrete.sitemap_xml.priority 0.5
concrete.accessibility.toolbar_titles false
concrete.accessibility.toolbar_large_font false
concrete.accessibility.display_help_system true
concrete.accessibility.toolbar_tooltips true
concrete.i18n.choose_language_login false
concrete.i18n.community_translation.entry_pointhttp://translate.concrete5.org/api...
concrete.i18n.community_translation.api_token
concrete.i18n.community_translation.progress_limit 60
concrete.i18n.community_translation.cache_lifetime 3600
concrete.i18n.community_translation.package_urlhttps://translate.concrete5.org/translate/package...
concrete.urls.concrete5http://www.concrete5.org
concrete.urls.concrete5_securehttp://www.concrete5.org
concrete.urls.newsflowhttp://newsflow.concrete5.org
concrete.urls.background_feed //backgroundimages.concrete5.org/wallpaper
concrete.urls.background_feed_securehttps://backgroundimages.concrete5.org/wallpaper...
concrete.urls.background_infohttp://backgroundimages.concrete5.org/get_image_data.php...
concrete.urls.videoshttps://www.youtube.com/user/concrete5cms/videos...
concrete.urls.help.developerhttp://documentation.concrete5.org/developers...
concrete.urls.help.userhttp://documentation.concrete5.org/editors...
concrete.urls.help.forumhttp://www.concrete5.org/community/forums...
concrete.urls.paths.menu_help_service /tools/get_remote_help_list/
concrete.urls.paths.site_page /private/sites
concrete.urls.paths.newsflow_slot_content /tools/slot_content/
concrete.urls.paths.marketplace.connect /marketplace/connect
concrete.urls.paths.marketplace.connect_success /marketplace/connect/-/connected
concrete.urls.paths.marketplace.connect_validate /marketplace/connect/-/validate
concrete.urls.paths.marketplace.connect_new_token /marketplace/connect/-/generate_token
concrete.urls.paths.marketplace.checkout /cart/-/add/
concrete.urls.paths.marketplace.purchases /marketplace/connect/-/get_available_licenses
concrete.urls.paths.marketplace.item_information /marketplace/connect/-/get_item_information
concrete.urls.paths.marketplace.item_free_license /marketplace/connect/-/enable_free_license
concrete.urls.paths.marketplace.remote_item_list /marketplace/
concrete.white_label.logo false
concrete.white_label.name false
concrete.white_label.background_image null
concrete.session.name CONCRETE5
concrete.session.handler file
concrete.session.save_path null
concrete.session.max_lifetime 7200
concrete.session.cookie.cookie_path false
concrete.session.cookie.cookie_lifetime 0
concrete.session.cookie.cookie_domain false
concrete.session.cookie.cookie_secure false
concrete.session.cookie.cookie_httponly true
concrete.user.registration.enabled false
concrete.user.registration.type disabled
concrete.user.registration.captcha true
concrete.user.registration.email_registration false
concrete.user.registration.display_username_field true
concrete.user.registration.validate_email false
concrete.user.registration.approval false
concrete.user.registration.notification false
concrete.user.group.badge.default_point_value 50
concrete.user.username.maximum 64
concrete.user.username.minimum 3
concrete.user.username.allow_spaces false
concrete.user.password.maximum 128
concrete.user.password.minimum 5
concrete.user.password.hash_portable false
concrete.user.password.hash_cost_log2 12
concrete.user.password.legacy_salt
concrete.user.private_messages.throttle_max 20
concrete.user.private_messages.throttle_max_timespan 15
concrete.spam.whitelist_group 0
concrete.spam.notify_email
concrete.security.session.invalidate_on_user_agent_mismatch true
concrete.security.session.invalidate_on_ip_mismatch true
concrete.security.ban.ip.enabled true
concrete.security.ban.ip.attempts 5
concrete.security.ban.ip.time 300
concrete.security.ban.ip.length 10
concrete.security.misc.x_frame_options SAMEORIGIN
concrete.permissions.forward_to_login true
concrete.permissions.model advanced
concrete.seo.tracking.code
concrete.seo.tracking.code_position bottom
concrete.seo.exclude_words a, an, as, at, before, but, by, for, from, is, in, into, like, of, off, on, onto, per, since, than, the, this, that, to, up, via, with
concrete.seo.url_rewriting false
concrete.seo.url_rewriting_all false
concrete.seo.redirect_to_canonical_url 0
concrete.seo.canonical_url null
concrete.seo.canonical_url_alternative null
concrete.seo.trailing_slash false
concrete.seo.title_format %2$s :: %1$s
concrete.seo.title_segment_separator ::
concrete.seo.page_path_separator -
concrete.seo.group_name_separator /
concrete.seo.segment_max_length 128
concrete.seo.paging_string ccm_paging_p
concrete.statistics.track_downloads true
concrete.limits.sitemap_pages 100
concrete.limits.delete_pages 100
concrete.limits.copy_pages 10
concrete.limits.page_search_index_batch 200
concrete.limits.job_queue_batch 10
concrete.limits.style_customizer.size_min -50
concrete.limits.style_customizer.size_max 200
concrete.page.search.always_reindex false
concrete.version_db_installed 20170802000000
GET Data empty
POST Data empty
Files empty
Cookies
CONCRETE5 icghkv1g60721srd8hi7qn4cd5
__stripe_mid 7516df8b-9be4-4f10-9e4e-fc5728d1124d
_ga GA1.3.694782144.1569669100
_fbp fb.2.1569669100633.1519471705
Session empty
Server/Request Data
PATH /bin:/usr/bin:/usr/local/bin
HTTP_ACCEPT text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
HTTP_ACCEPT_ENCODING gzip, deflate, br
HTTP_ACCEPT_LANGUAGE en-GB,en-US;q=0.9,en;q=0.8
HTTP_COOKIE CONCRETE5=icghkv1g60721srd8hi7qn4cd5; __stripe_mid=7516df8b-9be4-4f10-9e4e-fc5728d1124d; _ga=GA1.3.694782144.1569669100; _fbp=fb.2.1569669100633.1519471705
HTTP_HOSThttp://www.xxx.co.uk
HTTP_USER_AGENT Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36
HTTP_UPGRADE_INSECURE_REQUESTS 1
HTTP_SEC_FETCH_MODE navigate
HTTP_SEC_FETCH_USER ?1
HTTP_SEC_FETCH_SITE none
DOCUMENT_ROOT /home/public_html
REMOTE_ADDR 92.27.11.3
REMOTE_PORT 55956
SERVER_ADDR 5.134.13.213
SERVER_NAMEhttp://www.xxx.co.uk
SERVER_ADMIN webmaster@xxx.co.uk
SERVER_PORT 443
REQUEST_URI /
HTTPS on
X_SPDY QUIC
SSL_PROTOCOL QUIC
SSL_CIPHER aes-128-gcm
SSL_CIPHER_USEKEYSIZE 128
SSL_CIPHER_ALGKEYSIZE 128
SCRIPT_FILENAME /home//public_html/index.php
QUERY_STRING
SCRIPT_URIhttp://www.xxx.co.uk/
SCRIPT_URL /
SCRIPT_NAME /index.php
SERVER_PROTOCOL HTTP/1.1
SERVER_SOFTWARE LiteSpeed
REQUEST_METHOD GET
X-LSCACHE on,crawler
PHP_SELF /index.php
REQUEST_TIME_FLOAT 1571058477.8649
REQUEST_TIME 1571058477
Environment Variables
PATH /bin:/usr/bin:/usr/local/bin
Registered Handlers
0. Concrete\Core\Error\Handler\ErrorHandler
1. Concrete\Core\Error\Handler\JsonErrorHandler

 
mnakalay replied on at Permalink Reply
mnakalay
Hello. Which version of PHP are you using exactly?
Strobe replied on at Permalink Reply
It was on 5.6. Changing to 7.0 fixed the error.

What I don't understand is why the sudden error?