Pro Theme Fatal error issue. Uncaught Exception

Hi there, after updating the Pro theme to v.5.1.4 from v4.3.3, I get the following error when viewing the admin or home page, or any page for that matter.

Fatal error: Uncaught Exception: Class Themeco\Cornerstone\Elements\EntityCache not found in /code/wp-content/themes/pro/cornerstone/includes/classes/Util/IocContainer.php:26 Stack trace: #0 /code/wp-content/themes/pro/cornerstone/includes/classes/Util/IocContainer.php(58): Themeco\Cornerstone\Util\IocContainer->resolve('Themeco\\Corners...') #1 [internal function]: Themeco\Cornerstone\Util\IocContainer->Themeco\Cornerstone\Util\{closure}(Object(ReflectionParameter)) #2 /code/wp-content/themes/pro/cornerstone/includes/classes/Util/IocContainer.php(63): array_map(Object(Closure), Array) #3 /code/wp-content/themes/pro/cornerstone/includes/classes/Plugin.php(111): Themeco\Cornerstone\Util\IocContainer->resolve('Themeco\\Corners...') #4 /code/wp-content/themes/pro/cornerstone/includes/classes/Plugin.php(115): Themeco\Cornerstone\Plugin->resolve('Themeco\\Corners...') #5 /code/wp-content/themes/pro/cornerstone/includes/classes/pro/class-pro-setup.php(6): Themeco\Cornerstone\Plugin->service('Elements') #6 /code/wp-content/theme in /code/wp-content/themes/pro/cornerstone/includes/classes/Util/IocContainer.php on line 26
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Does anyone know why this is happening and the remedy to fix?


Hello @aaronlutze,

Thanks for writing to us.

It might be the issue of plugin conflict or version compatibility issue. Please make sure your theme, plugins, WordPress core, and the PHP version(7.4+) are updated as per our version compatibility page. Please note PHP version is also recommended by WordPress as well. Please have a look at this article.

In case if the PHP version is not updated you need to contact your hosting provider to update it. I would suggest you troubleshoot with a few of the common issues before we investigate your settings.

  1. Testing For Theme Related Issue
  2. Testing For Plugin Conflict
  3. Theme Update
  4. Child Theme
  5. Css/Js Customization
  6. Increasing Php Memory Limit
  7. Disabling Cache
  8. Disabling Cdn
  9. Permalinks
  10. Version Compatibility

If none of those work, It would be best if you could copy your live website to your staging area. and send your details in a secure note so that we can investigate your setting without breaking your live site. Please provide the following details

  • WordPress Login URL
  • Admin level username and password
  • FTP Details

You can find the Secure Note button at the bottom of your posts


Hi @aaronlutze,

Thanks for reaching out.
It might be due to the improper update of the Pro, I would suggest you delete Pro manually from FTP/CPanel and reinstall it by downloading from your Themeco Account and check if that resolves your issue or not.


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