Good morning, I'm also having the same issue. In my case the log is generated seems like the string being processed is not well constructed.

[2/19/2025 7:15:06 AM] ERROR: Error creating CSR
System.Runtime.InteropServices.COMException (0x80092023): CertEnroll::CX500DistinguishedName::Encode: The string contains an invalid X500 name attribute key, oid, value or delimiter. 0x80092023 (-2146885597 CRYPT_E_INVALID_X500_STRING)
   at CertEnrollInterop.IX500DistinguishedName.Encode(String strName, X500NameFlags NameFlags)
   at SolidCP.Providers.Web.Iis.SSLModuleService.GenerateCsr(SSLCertificate cert)