Issue Can't install imunify360

[Johnny9977]

I'm trying to re-install imunify360 within Plesk Obsidian but I'm getting following error message:

Sentry is attempting to send 0 pending error messages
Waiting up to 2.0 seconds
Press Ctrl-C to quit
[Errno 2] No such file or directory: '/usr/local/psa/admin/sbin/modsecurity_ctl'
Sentry is attempting to send 0 pending error messages
Waiting up to 2.0 seconds
Press Ctrl-C to quit
dpkg: error processing package imunify360-firewall-plesk (--configure):
 installed imunify360-firewall-plesk package post-installation script subprocess returned error exit status 11
Processing triggers for systemd (237-3ubuntu10.31) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for shared-mime-info (1.9-2) ...
Processing triggers for mime-support (3.60ubuntu1) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Errors were encountered while processing:
 imunify360-firewall-plesk
E: Sub-process /usr/bin/dpkg returned an error code (1)

I've tried it multiple times now. Can anyone please help me? I've no other firewall installed. First, I had the standard Plesk firewall installed, but I've removed it first to prevent problems with the imunify firewall.

 

[Peter_]

The imunify360 plugin requires that mod_security (ModSecurity) is installed. You may install it from the Plesk "Update" or "Upgrade" page.
Should solve that issue