Hello @oostihere,
Please check WP_DEBUG in wp-config.php file. If it is set to false then please change it to TRUE.
You can do this by adding the following lines to your wp-config.php underneath the WP_DEBUG line so that it looks like below.
define( 'WP_DEBUG_LOG', true );
define( 'WP_DEBUG_DISPLAY', false );
After that, please check Error log file.