WAF Update Error Atomic Basic ModSecurity

Hello,

i have on my server installed OS ‪CentOS 6.10 (Final)‬ Onyx Version 17.8.11 Update #37 . I have in WAF Atomic Basic ModSecurity activated. Yum Updates are done. I get the following error:

Error: Failed to update the ModSecurity rule set: modsecurity_ctl failed: gpg: key 4520AFA9: "Atomicorp (Atomicorp Official Signing Key) <support@atomicorp.com>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1
gpg: Signature made Fri Jan 11 20:14:13 2019 CET using RSA key ID...

WAF Update Error Atomic Basic ModSecurity