Mac intermittent shutdown

Hey all,

I am facing an intermittent shutdown issue after the fresh install of Catalina v 10.15.7. Please can you all help with how I can diagnose this.

After doing a little digging I was able to pull this from the Mac Analytics tab in the console. This was the same tab when the computer turned off.

com.apple.message.domain: com.apple.crash_reporter.bear_trap

com.apple.message.__source__: SPI

com.apple.message.details: Error Domain=NSOSStatusErrorDomain Code=-67818 "“Diagnostics and Usage Config Signing” certificate is expired" UserInfo={NSLocalizedDescription=“Diagnostics and Usage Config Signing” certificate is expired, NSUnderlyingError=0x7ff798f26da0 {Error Domain=NSOSStatusErrorDomain Code=-67818 "Certificate 0 “Diagnostics and Usage Config Signing” has errors: Certificate is not temporally valid;" UserInfo={NSLocalizedDescription=Certificate 0 “Diagnostics and Usage Config Signing” has errors: Certificate is not temporally valid;}}}

com.apple.message.summary: ConfigFile ACF signature verification failed

SenderMachUUID: 87E57387-1133-3712-9A44-60B2CA429A1F

Please let me know if you all need any more information