2975420 - SsfVerify failed: rc=5, SSF_API_SIGNER_ERRORS, "signer r c=27", SSF_API_SIGNER_NOT_OK

• Error "SsfVerify failed: rc=5, SSF_API_SIGNER_ERRORS, "signer r c=27", SSF_API_SIGNER_NOT_OK" is coming in the SAP system.
• This error is coming from actions related to the SAP Content Server so can be thrown in many different application transactions. 
• You are recently upgraded from a lower version of SAP Content server to 7.53, you have copied the <repository>.pse and <repository>.certs files from the old Content Server to the SECUDIR of the Content Server 7.53

• SAP Content Server 7.53
• Basis release independent

SsfVerify failed: rc=5, SSF_API_SIGNER_ERRORS, signer r c=27, SSF_API_SIGNER_NOT_OK, , KBA , BC-SRV-KPR-CS , SAP Content Server , Problem