Because clock is not synchronized and there is no reference clock.Could you check  IP's of NTP servers/peers and reference clocks are reachable from your device?  

Hello Amit,The answer is already addressed by Flavio Miranda in this thread.Thanks

Hello Amit,Could you please give some more details, is it public AS or private AS number?

 what is device connected to GigabitEthernet1/0/1? What is the status of Spanning tree?