aes key problem

[LievreAI]

hey guys i read a few post here and i see peoples have the same error
but i dont know how to get that fix yet i try to do decode of it but not work the same error appeard
said

("AES encryption key
base64 h67GrjX2aGMgrAQeNwf9VmCYbt50ylJFeP3rIhbxh4e9bZXnqm8sbvEjWGOi6rgs cannot decode to 32 byte long")