Hi Marco, Sorry for the late reply, due to Christmas holidays, go to Joomla global configuration and set error reporting to Maximum and provide website url.
This parameter sets the level of error reporting to be used by PHP on the Joomla site. It has four options: System Default, None, Simple, and Maximum. System “Default” leaves the level of PHP error reporting to that set up in the server (usually in the php.ini file). “None” switches off PHP error reporting, and “Simple” and “Maximum” override the server setting to give a basic level of reporting and the reporting of all errors, respectively.
Should your Joomla site fail to the extent that it is not possible to use the Administrator pages to activate error reporting, you can switch on full PHP error reporting by editing the configuration.php file. Changing the $error_reporting parameter in that file to a value of '6143' is the equivalent to setting Error Reporting to “Maximum”.