RBSXTR registration statut denied

Hello.
I am trying to configure the CPE RB SXTR with a 4G sim. But I have no network signal. The sim works well in another router or phone. interface lte info lte1 gives me as info ‘’ registration status:denied’'. I do not understand. But by choosing all the available bands in the Router OS nothing changes. Someone can help me?thanks You.

Could You print your routerboard model and write your 4G modem model ?