First of all, read the official WordPress documentation.
Enable Debug Mode
If you are not familiar with the wp-config.php file, you can easily use this plugin:
Or manually add to the wp-config.php file this row:
define( 'WP_DEBUG', true );
Get System Info from Elementor
If you need our help we will need some additional information.
You can find your System Info from your WordPress Dashboard’s menu by going to Elementor > System Info
The system info includes information about your Server and your WordPress environment.
Stuck in Maintenance Mode
If after a failed update your site shows: "Briefly unavailable for scheduled maintenance. Check back in a minute."
Don't worry, simply connect via FTP and delete the hidden file ".maintenance" in the site root and the website will reappear.
Increasing the WordPress Memory Limit
If you activate multiple plugins and your website handles a heavy amount of data, it would be better to increase the memory used by your WordPress project (40MB only by default).
Elementor Widget Panel not Loading?