I am getting this error whenever I am trying to upload or find the youtube video using key. HELP

{“apiVersion”:“2.1”,“error”:{“code”:410,“message”:“No longer available”,“errors”:[{“domain”:“GData”,“code”
:“NoLongerAvailableException”,“internalReason”:“No longer available”}]}}

I am getting this error whenever I am trying to upload or find the youtube video using key. I also enable the youtube api key by generating new project but still its not working. I need help baad.