I am receiving an error message stating "Client denied by server configuration.

[Patato]

I'm getting the error in the topic title from the error_logs file in the FTP directory. The only way to fix this is that it originates from some auto-generated commands in the .htaccess file, either created spontaneously or by a plugin. The issue is that I am using shared Linux WordPress hosting which restricts some commands. This plugin keeps trying the restricted commands and when it encounters an error, it logs it in the error logs file. I'm asking for help from friends who have knowledge about this topic. # BEGIN FRedirect_ErrorDocument # The directives (lines) between "BEGIN FRedirect_ErrorDocument" and "END FRedirect_ErrorDocument" are dynamically generated and should only be edited with WordPress filters. Changes made within these markers will be overwritten. ErrorDocument 404 /index.php?error=404 # END FRedirect_ErrorDocument These codes are automatically added to the .htaccess file. I delete them, but they reappear on their own. Due to these commands, the following errors are showing in the error_logs file: [Tue Nov 30 13:57:31 2021] [error] [client 31.142.183.200] client denied by server configuration: /var/www/vhosts/tekstilbilgi.net/httpdocs/index.pl [Tue Nov 30 14:00:30 2021] [error] [client 158.69.53.191] client denied by server configuration: /var/www/vhosts/tekstilbilgi.net/httpdocs/index.cgi [Tue Nov 30 14:00:30 2021] [error] [client 158.69.53.191] client denied by server configuration: /var/www/vhosts/tekstilbilgi.net/httpdocs/index.pl What should I do? Which setting should I disable in which plugin? Please help. Thank you in advance. Site address is here.