Website Crash

Hey,

I just saw the error:

Warning: require_once(meta/Frizzly_Meta_Social_data.php): failed to open stream: No such file or directory in /home/fightclu/domains/professorsaibertin.com/public_html/wp-content/plugins/frizzly/includes/includes/Frizzly_Includes.php on line 22

Fatal error: require_once(): Failed opening required ‘meta/Frizzly_Meta_Social_data.php’ (include_path=’.:/opt/alt/php55/usr/share/pear:/opt/alt/php55/usr/share/php’) in /home/fightclu/domains/professorsaibertin.com/public_html/wp-content/plugins/frizzly/includes/includes/Frizzly_Includes.php on line 22

I changed the plugin folder – didn’t help.
I uploaded fresh files of the plugin via FTP – didn’t help.

I have no backup for this site, cause I noticed the issue too late.
https://professorsaibertin.com/

How can I fix this?