4/01/2016 12:58:22.402 pm Spotifree[7181]: AppleEvents: Send port for process has no send right, port=( port:6231/0x1857 rcv:1,send:0,d:0 limit:5) (findOrCreate()/AEMachUtils.cp #526) com.apple.main-thread
Duplicate issue #32.
It is a bug in ScriptingBridge of Yosemity, but there is no impact in funcionality of Spotifree.
You have to upgrade to 10.11 if you want to get rid of them.
Its like 10 per second: