Unable to update Atomic ModSecurity rule-set in Plesk: modsecurity_ctl failed: HTTP Error 404: Not Found

Symptoms

Unable to update Atomic ModSecurity rule-set in Plesk. The following error is shown in Plesk UI:

PLESK_ERROR: Failed to update the ModSecurity rule set: modsecurity_ctl failed: HTTP Error 404: Not Found
Unable to download tortix rule set

or

PLESK_ERROR: Error: Failed to update the ModSecurity rule set: modsecurity_ctl failed: ('The read operation timed out',)
Unable to download tortix rule set

Cause

Temporary issue on Atomic ModSecurity side.

Resolution

1. Log into Plesk UI.

2. Turn off the Web application firewall mode at Plesk > Tools and Settings > Web Application Firewall (ModSecurity) page and click Apply.

3. Turn it on back again and click OK.

4. Manually run Plesk daily task with the key UpdateModSecurityRuleSet: 

# plesk daily UpdateModSecurityRuleSet