Error Blocking IPs

Hello,
When I try to block ip > Brute Force Monitor

Error Blocking IPs

Details

sh: /usr/local/directadmin/scripts/custom/block_ip.sh: Permission denied
sh: /usr/local/directadmin/scripts/custom/block_ip.sh: Permission denied

Csf is working on server. Block ip through DirectAdmin should I use or not?

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