Need Help Giving Error while joining webinar through zoom meeting sdk

Facing issue with joining zoom webinar. 
Following is error message received 

1. errorCode: 1
2. errorMessage: "Fail to join the meeting."
3. method: "join"
4. result: null
5. status: false
   
   Tried to track through network tab there following error message was there 
   localJsonpCallback1({
   "status": false,
   "errorCode": 3000,
   "errorMessage": "Join meeting failure, please try again."
   })
   
   It's an pro account so, not expecting limit issue as we are testing it on small scale.