I cant create Groups or user rolls.
The page reaload but nothing happen.
Dear Philip,
The problem you mentioned above is abnormal, in case there is any other compatibility problem in your website, please check these:
1) deactivate other plugins and switch to wordpress default theme, and test again
2) Enable PHP debug mode, copy and paste the debug logs here
PHP Debugging
In case you think that Types or Views are doing something wrong (what we call a bug), you should enable PHP error logging. Again, edit your wp-config.php file and add the following:
ini_set('log_errors',TRUE);
ini_set('error_reporting', E_ALL);
ini_set('error_log', dirname(__FILE__) . '/error_log.txt');
This will produce a file called ‘error_log.txt’ in your WordPress root directory. Make sure that the web server can create and write this file. If it cannot, use an FTP program to create the file and make it writable to Apache (normally, user www-data).
https://toolset.com/documentation/user-guides/debugging-types-and-views/
2) Also check if there is any JS error occurs in your website:
Javascript Debugging
Many of the operations in WordPress require Javascript. Any JavaScript error, caused by anything, may stop all further Javascript execution and prevent things from functioning properly.
JavaScript debugging is done using the browser’s built-in Developer Tools, more specifically, using a JavaScript Console. Today, all major browsers feature Developer Tools and a JavaScript Console:
In Chrome, click the Main menu button->More Tools->Developer Tools. Select the Console tab.
In Firefox, click the Main menu button->Developer->Web Console.
In Internet Explorer, click the Tools button->F12 Developer Tools. Select the Console tab.
In Edge, click the More button->F12 Developer Tools. Select the Console tab.
Once the Console is open, it should be clean of any error (red) messages. Some console warnings (yellow) may appear and are usually not a cause for alarm. However, if you see an error message, we should know about it.