Thank you for the quick answer.
I still face the same issue even after removing the config and slash
replacer.full_list(0).description=Authorization
replacer.full_list(0).enabled=true
replacer.full_list(0).matchtype=REQ_HEADER
replacer.full_list(0).matchstr=Authorization
replacer.full_list(0).regex=false
replacer.full_list(0).replacement=<Token>
replacer.full_list(1).description=x-api-key
replacer.full_list(1).enabled=true
replacer.full_list(1).matchtype=REQ_HEADER
replacer.full_list(1).matchstr=x-api-key
replacer.full_list(1).regex=false
replacer.full_list(1).replacement=<Value>