Check the PHP error log on your server and see what the actual error is.

I also get the same error page if I try to update the concrete 5 edition to the latest.... So I pulled the php log..... wow lots of errors to scan through. Here are all the error log entries for the time periods I attempted to add a page and update concrete 5...

[26-Sep-2017 00:25:35 America/Denver] PHP Fatal error: Class 'Concrete\Core\StyleCustomizer\Style\Style' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/StyleCustomizer/Style/TypeStyle.php on line 12
[26-Sep-2017 06:45:39 America/Denver] PHP Fatal error: Class 'Concrete\Core\StyleCustomizer\Style\Style' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/StyleCustomizer/Style/TypeStyle.php on line 12
[26-Sep-2017 12:48:19 America/Denver] PHP Fatal error: Class 'Concrete\Core\StyleCustomizer\Style\Style' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/StyleCustomizer/Style/TypeStyle.php on line 12
[26-Sep-2017 20:26:58 America/Denver] PHP Fatal error: Class 'Concrete\Core\StyleCustomizer\Style\Style' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/StyleCustomizer/Style/TypeStyle.php on line 12
[24-Sep-2017 17:41:43 America/Denver] PHP Fatal error: Class 'Concrete\Core\Permission\Key\AreaKey' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/Permission/Key/AddBlockToAreaAreaKey.php on line 6
[25-Sep-2017 21:28:30 America/Denver] PHP Fatal error: Class 'Concrete\Core\Foundation\Service\Provider' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/Http/HttpServiceProvider.php on line 5
[26-Sep-2017 05:43:29 America/Denver] PHP Fatal error: Class 'Concrete\Core\Foundation\Service\Provider' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/Http/HttpServiceProvider.php on line 5
[27-Sep-2017 14:46:46 America/Denver] PHP Fatal error: Class 'Concrete\Core\Block\BlockController' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/blocks/core_stack_display/controller.php on line 21
[27-Sep-2017 21:54:19 America/Denver] PHP Fatal error: Class 'Concrete\Core\Block\BlockController' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/blocks/core_stack_display/controller.php on line 21
[29-Sep-2017 08:55:25 America/Denver] PHP Fatal error: Class 'Concrete\Core\Block\BlockController' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/blocks/core_stack_display/controller.php on line 21

Hrm... this almost looks like you attempted to upgrade to 5.7.5.13 and had a server 500 error in the middle of the process. Did that happen? If so have you tried going to /index.php/tools/required/upgrade and rerunning the script?

I did get it to upgrade the way you said. I also attempted, after that, to go through the system settings tab and the update concrete link at the bottom and this time I didn't even load into the update status/options page I went directly to the error 500 page and generated this in the php log
[29-Sep-2017 09:47:40 America/Denver] PHP Fatal error: Interface 'Concrete\Core\Area\Layout\Preset\Formatter\FormatterInterface' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/Area/Layout/Preset/Formatter/UserFormatter.php on line 9
[29-Sep-2017 10:03:11 America/Denver] PHP Fatal error: Interface 'Concrete\Core\Area\Layout\Preset\Formatter\FormatterInterface' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/Area/Layout/Preset/Formatter/ThemeFormatter.php on line 10
[29-Sep-2017 06:39:31 America/Denver] PHP Fatal error: Class 'Concrete\Core\StyleCustomizer\Style\Style' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/src/StyleCustomizer/Style/TypeStyle.php on line 12
[29-Sep-2017 08:55:25 America/Denver] PHP Fatal error: Class 'Concrete\Core\Block\BlockController' not found in /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater/concrete/blocks/core_stack_display/controller.php on line 21

Does this directory exist on your server? /home4/sheridc9/public_html/updates/concrete5.7.5.13_remote_updater

yes

What should I do? I can't add new pages or makes changes to the pages, I have a lot of issues with editing the site... got an error on the php log that referred me to the .htaccess file line ten that referred to "controller" class that it was not found. I don't understand how the page suddenly has this type of error when all I did was try to add a page about two weeks ago and didn't mess with the coding on the back side or alter the server settings..... Should I just wipe and restart???

Have you tried going to /index.php/tools/required/upgrade and rerunning the script?

I reran the script but still having the same issues with trying to add new pages to the site.....