When I try to add attributes to a page, the attribute panel is completely blank. I'm including a screenshot to demonstrate.

It works fine on my local install, but I cannot figure out how to fix it on the live site.

Help?

Here's the environment info:

# concrete5 Version
Core Version - 8.2.1
Version Installed - 8.2.1
Database Version - 20170802000000

# concrete5 Packages
Block Designer (2.7.0), Breadcrumb Trail Page Links (1.1), Cookies Disclosure (0.9.4), Vivid Simple Accordion (1.0.1), Webli YouTube PopUp (2.1.1)

# concrete5 Overrides
blocks/page_list/view.php, blocks/page_list, blocks/content/templates/shrinkFinder/view.php, blocks/content/templates/shrinkFinder, blocks/content/templates/learnMore/view.php, blocks/content/templates/learnMore, blocks/content/templates/whiteBoxFull/view.php, blocks/content/templates/whiteBoxFull, blocks/content/templates/darkGrayBoxFull/view.php, blocks/content/templates/darkGrayBoxFull, blocks/content/templates/greenBox/view.php, blocks/content/templates/greenBox, blocks/content/templates/grayBoxFull/view.php, blocks/content/templates/grayBoxFull, blocks/content/templates/grayBox/view.php, blocks/content/templates/grayBox, blocks/content/templates/greenBoxFull/view.php, blocks/content/templates/greenBoxFull, blocks/content/templates/darkGrayBox/view.php, blocks/content/templates/darkGrayBox, blocks/content/templates, blocks/content, blocks/directory_box/config.json, blocks/directory_box/composer.php, blocks/directory_box/icon.png, blocks/directory_box/edit.php, blocks/directory_box/add.php, blocks/directory_box/db.xml, blocks/directory_box/controller.php, blocks/directory_box/view.php, blocks/directory_box/form.php, blocks/directory_box, blocks/html_test/config.json, blocks/html_test/composer.php, blocks/html_test/icon.png, blocks/html_test/edit.php, blocks/html_test/add.php, blocks/html_test/db.xml, blocks/html_test/controller.php, blocks/html_test/view.php, blocks/html_test/form.php, blocks/html_test, blocks/autonav/templates/main_nav/view.php, blocks/autonav/templates/main_nav, blocks/autonav/templates, blocks/autonav, blocks/resources_box/config.json, blocks/resources_box/composer.php, blocks/resources_box/icon.png, blocks/resources_box/edit.php, blocks/resources_box/add.php, blocks/resources_box/db.xml, blocks/resources_box/controller.php, blocks/resources_box/view.php, blocks/resources_box/form.php, blocks/resources_box, themes/clysar/template_general.php, themes/clysar/template_detail_film.php, themes/clysar/template_detail.php, themes/clysar/description.txt, themes/clysar/elements/footerNew.php, themes/clysar/elements/header.php, themes/clysar/elements/headerNoNav.php, themes/clysar/elements/footer.php, themes/clysar/elements, themes/clysar/template_shrinkfinder.php, themes/clysar/template_directory.php, themes/clysar/images/img-EZ-large.png, themes/clysar/images/arrow-down.png, themes/clysar/images/bkg-main-tooaluminum.png, themes/clysar/images/img-header-logo.png, themes/clysar/images/img-undertanding-film-small.png, themes/clysar/images/img-video-small.png, themes/clysar/images/img-HPG-gold-small.png, themes/clysar/images/bkg-main6.png, themes/clysar/images/bkg-main-loose.png, themes/clysar/images/img-suppliers.png, themes/clysar/images/img-spec-sheets-small.png, themes/clysar/images/bkg-main.png, themes/clysar/images/bkg-main-slightly-too-short.jpg, themes/clysar/images/icon-shrinkfinder.png, themes/clysar/images/arrow-up.png, themes/clysar/images/bkg-main-horizontal.png, themes/clysar/images/img-printedfilm-small.png, themes/clysar/images/img-shrinkbox-small.png, themes/clysar/images/img-shrink-films-group.png, themes/clysar/images/bkg-main-blue.png, themes/clysar/images/bkg-main-vertical.jpg, themes/clysar/images/img-about.png, themes/clysar/images/shrinkfinder-restart.gif, themes/clysar/images/img-laptop-woman.png, themes/clysar/images/img-dan-lightbulbs.png, themes/clysar/images/planet.jpg, themes/clysar/images/bkg-main.jpg, themes/clysar/images/bkg-main-safe.png, themes/clysar/images/img-ltc-blanket.jpg, themes/clysar/images/img-LTCL-large.png, themes/clysar/images/img-lee-sample.png, themes/clysar/images/img-LE-gold-small.png, themes/clysar/images/video.png, themes/clysar/images/shrinkfinder-bttn-lbkg.png, themes/clysar/images/bkg-main-top.png, themes/clysar/images/icon-search.png, themes/clysar/images/img-more-bar.png, themes/clysar/images/shrinkfinder-bttn-rbkg.png, themes/clysar/images/img-EZ-small.png, themes/clysar/images/apple-close.png, themes/clysar/images/bkg-main-nah.png, themes/clysar/images/shrinkfinder-shadow.png, themes/clysar/images/shrinkfinder-restart.png, themes/clysar/images/bkg-main-horizonat.png, themes/clysar/images/img-ABL-small.png, themes/clysar/images/shrinkfinder-hdr-bkg.png, themes/clysar/images/img-HPG-gold-large.png, themes/clysar/images/img-HPG-confidential-small.png, themes/clysar/images/img-packaging-resources.png, themes/clysar/images/bkg-main-original.png, themes/clysar/images/img-LTC-small.png, themes/clysar/images/bkg-main1.jpg, themes/clysar/images/btn-requestquote.png, themes/clysar/images/bkg-main3.png, themes/clysar/images/shrinkfinder-droparrow.png, themes/clysar/images/1.jpg, themes/clysar/images/img-21tips-small.png, themes/clysar/images/img-AFG-small.png, themes/clysar/images/bkg-main-short.jpg, themes/clysar/images/img-shrinkbox-large.png, themes/clysar/images/img-trayloc-small.png, themes/clysar/images/bkg-main2.jpg, themes/clysar/images/img-msds-small.png, themes/clysar/images/bkg-main-new.jpg, themes/clysar/images/img-LTCH-large.png, themes/clysar/images/2.jpg, themes/clysar/images/img-trayloc-large.png, themes/clysar/images/placeholder.png, themes/clysar/images/bkg-main-vertical-close.png, themes/clysar/images/img-LTCH-small.png, themes/clysar/images/img-AFG-large.png, themes/clysar/images/page_white_acrobat.png, themes/clysar/images/img-careers.png, themes/clysar/images/img-LTCL-small.png, themes/clysar/images/img-LTC-large.png, themes/clysar/images/img-flag.png, themes/clysar/images/img-LE-gold-large.png, themes/clysar/images/bkg-main-roll.png, themes/clysar/images/3.jpg, themes/clysar/images, themes/clysar/template_no_nav.php, themes/clysar/template_equip_compatibility.php, themes/clysar/template_four_dropdowns.php, themes/clysar/template_contact.php, themes/clysar/js/raphael.js, themes/clysar/js/scale.raphael.js, themes/clysar/js/footer.js, themes/clysar/js/jquery.js, themes/clysar/js/init.js, themes/clysar/js/jquery.cookiesdirective.js, themes/clysar/js/paths.js, themes/clysar/js/bootstrap.min.js, themes/clysar/js, themes/clysar/css/map.css, themes/clysar/css/clysarstyles.css, themes/clysar/css/media-queries.css, themes/clysar/css/style.css, themes/clysar/css/fonts.css, themes/clysar/css/reset.css, themes/clysar/css/adaptive.css, themes/clysar/css/bootstrap-modified.css, themes/clysar/css, themes/clysar/template_about.php, themes/clysar/template_detail_film_sustainable.php, themes/clysar/template_detail_wrap.php, themes/clysar/template_careers.php, themes/clysar/original-index.php, themes/clysar/template_contract_solutions.php, themes/clysar/template_understanding_shrinkfilm.php, themes/clysar/template_directory-safety.php, themes/clysar/template_detail copy.php, themes/clysar/template_general_sidebar.php, themes/clysar/template_right_sidebar.php, themes/clysar/template_news_entry.php, themes/clysar/default.php, themes/clysar/template_suppliers.php, themes/clysar/fonts/droidsans-webfont.eot, themes/clysar/fonts/droidsans-bold-webfont.ttf, themes/clysar/fonts/droidsans-bold-webfont.svg, themes/clysar/fonts/droidsans-bold-webfont.woff, themes/clysar/fonts/droidsans-webfont.woff, themes/clysar/fonts/droidsans-webfont.svg, themes/clysar/fonts/droidsans-webfont.ttf, themes/clysar/fonts/droidsans-bold-webfont.eot, themes/clysar/fonts, themes/clysar/template_news.php, themes/clysar/xml/usaMapSettings.xml, themes/clysar/xml/usaMapSettings-old-with-addresses.xml, themes/clysar/xml, themes/clysar/template_search_results.php, themes/clysar/template_sustainability.php, themes/clysar/page_theme.php, themes/clysar/template_home.php, themes/clysar/template_packaging_resources.php, themes/clysar

# concrete5 Cache Settings
Block Cache - On
Overrides Cache - On
Full Page Caching - Off
Full Page Cache Lifetime - Every 6 hours (default setting).

# Server Software
Apache

# Server API
cgi-fcgi

# PHP Version
5.6.30

# PHP Extensions
bcmath, calendar, cgi-fcgi, Core, ctype, curl, date, dom, ereg, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imap, ionCube Loader, json, libxml, mbstring, mcrypt, mysql, mysqli, mysqlnd, openssl, pcre, PDO, pdo_mysql, pdo_sqlite, Phar, posix, Reflection, session, SimpleXML, sockets, SPL, sqlite3, standard, suhosin, tokenizer, xml, xmlreader, xmlwriter, Zend Guard Loader, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 90
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 60
max_input_vars - 1000
memory_limit - 128M
post_max_size - 25M
sql.safe_mode - Off
upload_max_filesize - 25M
mysql.max_links - Unlimited
mysql.max_persistent - Unlimited
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
suhosin.cookie.max_array_depth - 50
suhosin.cookie.max_array_index_length - 64
suhosin.cookie.max_name_length - 64
suhosin.cookie.max_totalname_length - 256
suhosin.cookie.max_value_length - 10000
suhosin.cookie.max_vars - 100
suhosin.executor.include.max_traversal - 0
suhosin.executor.max_depth - 750
suhosin.get.max_array_depth - 50
suhosin.get.max_array_index_length - 64
suhosin.get.max_name_length - 64
suhosin.get.max_totalname_length - 256
suhosin.get.max_value_length - 512
suhosin.get.max_vars - 100
suhosin.log.phpscript.is_safe - Off
suhosin.memory_limit - 0
suhosin.post.max_array_depth - 50
suhosin.post.max_array_index_length - 64
suhosin.post.max_name_length - 64
suhosin.post.max_totalname_length - 256
suhosin.post.max_value_length - 1000000
suhosin.post.max_vars - 1000
suhosin.request.max_array_depth - 50
suhosin.request.max_array_index_length - 64
suhosin.request.max_totalname_length - 256
suhosin.request.max_value_length - 1000000
suhosin.request.max_varname_length - 64
suhosin.request.max_vars - 1000
suhosin.session.max_id_length - 128
suhosin.upload.max_newlines - 100
suhosin.upload.max_uploads - 25
opcache.max_accelerated_files - 7963
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5