[Resolved] Divi builder not loading when views activated

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[Tim Elliott]

I am trying to: Load Divi Builder with Toolset plugins active

Link to a page where the issue can be seen: Admin only

I expected to see: Divi Builder

Instead, I got: No Divi Builder

When I edit a page in the admin side the Divi builder doesn't show up. I have tested switching plugins off and on and the problem occurs when either Views or Cred is active. Maps and Layouts doesn't cause the same problem.

The site was copied from a staging site using "All in one WP migration" and everything works OK on the staging site.

I read this thread https://toolset.com/forums/topic/divi-builder-isnt-loading-when-views-plugin-is-activated/ and have run the error log which gives this error:
[19-Jun-2018 11:06:50 UTC] PHP Fatal error: Call to undefined function mb_convert_case() in /home/hillgrovetimberc/public_html/wp-content/plugins/wp-views/application/controllers/api.php on line 143

Note also that when I disable Divi and use another theme, the normal WordPress Editor Controls do not display on a new post and various other admin functions don't work. Same error logged.

Hope you can help
Thanks
Tim

[Tim Elliott]

Note also that the staging server where it works is using PHP version 5.3.26.
The new version where it doesn't work is using PHP version 5.6.36

[Tim Elliott]

I've just tried adding this to my functions.php:

if ( !function_exists( 'mb_convert_case' ) ) { 
  function mb_convert_case($str, $mode = MB_CASE_TITLE, $encoding = 'UTF-8') 
{ 
    //Only implementing MB_CASE_TITLE 
    if($mode = MB_CASE_TITLE) 
    { 
        return ucwords($str); 
    } 
    return $str; 
  } 
} 

I now get a different error:
PHP Fatal error: Class 'WPV_Api_Handler_Get_available_content_templates' not found in /home/hillgrovetimberc/public_html/wp-content/plugins/wp-views/application/controllers/api.php on line 149

[Minesh]

Hello. Thank you for contacting the Toolset support.

Well - It looks like on your server doesn't have the mb_string PHP module activated.

Could you please ask your hosing authority or if you know how to activate mb string module you should do it on your own and try to resolve your issue.

Related links that may help you:
=> hidden link
=> https://stackoverflow.com/questions/12894232/call-to-undefined-function-fos-userbundle-util-mb-convert-case
=> hidden link

[Tim Elliott]

Thanks Minesh

That's working now.