Issue Modsecurity: collections_remove_stale: Failed deleting collection

[surfgatinho]

Am running Plesk 12.5.30 on Centos 7

I just changed my Modsecurity to the Comodo ruleset. This seemed to work fine initially but now the log is full of errors like this:
Message: collections_remove_stale: Failed deleting collection (name "ip", key "66.xxx.xx.xx_bdfad4a7db1794934cd11307679d21a28ea5d76c"): Internal error

Also the /var/cache/modsecurityip.pag file seems to be growing exponentially as a result.

This version of modsecurity is 2.9.0 and I did read somewhere that there was a logic issue with the garbage collection that was only fixed in v 2.9.1

Any ideas?

Thanks, Chris

 

[surfgatinho]

Seems OK when I run the other rulesets (OSWAP / Atom)