Hi @tacet22,

I am sorry to hear that you have lost your work over such an issue. When you get an error 500 you usually don’t need to reinstall everything and start from scratch, in most cases you just have to remove a plugin (or whatever else is causing the error) and your site would be back up and running again without losing any of your work. I am actually quite surprised to hear that your hosting service has completely reset your install instead of just disabling what was causing the issue.

Unfortunately I can’t say exactly what was causing the issue, since I would need to read the debug logs from your website to get a more precise idea of what happened.

To help us getting clues in case it happens again, please activate the debug logging on your website, just turn WP_DEBUG to true, by pasting the following code lines (or replacing them if they already exist) in your wp-config.php file, just before the line that says ‘That’s all, stop editing! Happy blogging.’:

// Enable WP_DEBUG mode
define( 'WP_DEBUG', true );

// Enable Debug logging to the /wp-content/debug.log file
define( 'WP_DEBUG_LOG', true );

// Disable display of errors and warnings 
define( 'WP_DEBUG_DISPLAY', false );
@ini_set( 'display_errors', 0 );

More on this in the following topic: https://codex.wordpress.org/Debugging_in_WordPress

Finally, if you want to make backups of your website, I suggest that you read this article and choose the solution that fits you :
https://www.wpbeginner.com/plugins/7-best-wordpress-backup-plugins-compared-pros-and-cons/

Thank you.

You’re welcome. ?

Feel free to create a new topic in case it happens again.

Cheers,