Sims are not working Lineage os Honor 6x

[Harsu04]

I have install lineage OS 14.1 in my honour 6x but after installing my Sims are not detecting by my phone and I am very tired of searching how to do it can anyone tell me the way how I can enable function options in my phone I have heard about r i l issues maybe it is one of them so please tell me anyway so I can find a solution and I can use custom ROMs in my honour 6x thanks in advance