What version of ckinfo are you using?
I could only find ckinfo 1.14 on Thewd's github.
When I attempt to decode the Site Code using
Code:
/siteCode BFAB 6ABC 14E9 3616 7E
I get the following error
Code:
CrypKey Copy Protection Information v1.14
Parsing Code - BFAB 6ABC 14E9 3616 7E
Decrypt Failed - Trying v6.00 Decryption...
Error #16: Error occurred decrypting the Site Code - Encryption Keys Not Found
Did you use a script instead of /siteCode?