Token transfer missing_auth_exception

{
"code":500,"message":"Internal Service Error",
"error":{"code":3090004,"name":"missing_auth_exception",
"what":"Missing required authority",
"details":[{"message":"missing authority of thomsoimj21","file":"apply_context.cpp","line_number":151,
"method":"require_authorization"},
{"message":"pending console output: ","file":"apply_context.cpp",
"line_number":72,"method":"exec_one"
}]}}

I am not able to transfer token from one an account to aother account. Where am I going wrong?