SOLVED: 401 Unauthorized when trying to connect extension with softphone

FreePBX
,
3

Thank you. After monitoring I got this

[2018-01-26 17:33:32] NOTICE[4105]: res_pjsip/pjsip_distributor.c:649 log_failed_request: Request ‘REGISTER’ from ‘“VoIP” sip:[email protected]’ failed for ‘192.168.0.101:53522’ (callid: 89322ODA4M2ExYzQwMTZiYjQyZWY1MzNmYjYxMzY1NzcyMjA) - No matching endpoint found
[2018-01-26 17:33:32] NOTICE[4105]: res_pjsip/pjsip_distributor.c:649 log_failed_request: Request ‘REGISTER’ from ‘“VoIP” sip:[email protected]’ failed for ‘192.168.0.101:53522’ (callid: 89322ODA4M2ExYzQwMTZiYjQyZWY1MzNmYjYxMzY1NzcyMjA) - No matching endpoint found
[2018-01-26 17:33:32] NOTICE[4105]: res_pjsip/pjsip_distributor.c:649 log_failed_request: Request ‘REGISTER’ from ‘“VoIP” sip:[email protected]’ failed for ‘192.168.0.101:53522’ (callid: 89322ODA4M2ExYzQwMTZiYjQyZWY1MzNmYjYxMzY1NzcyMjA) - Failed to authenticate

My extension is Chan SIP.
How can I fix this?