Question ModSecurity Error

[Zoo3]

When I logged in to Plesk, ModSecurity errors have been warned of last week.
How can I resolve the errors below?
Is this a ModSecurity side or a Collabora Repo side? I tried recreating Collabora Repo. I was able to update with yum update without problems.

Error: ModSecurity an attempt to update the rule set failed. modsecurity_ctl failed: gpg: key KEY-ID: "Atomicorp (Atomicorp Official Signing Key) <support@atomicorp.com>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
gpg: Signature made Thu Jun 21 00:13:55 2018 JST using RSA key ID KEY-ID
gpg: Good signature from "Atomicorp (Atomicorp Official Signing Key) <support@atomicorp.com>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg: There is no indication that the signature belongs to the owner.
Primary key fingerprint: FINGERPRINT CODE
TERM environment variable not set.
https://www.collaboraoffice.com/repos/CollaboraOnline/CODE-centos7/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article

https://www.collaboraoffice.com/repos/CollaboraOnline/CODE-centos7/repodata/repomd.xml

This itself exists.

Please help.