Reconnect Apple Watch connection ESIM

Good day. I'm having trouble reconnecting to a mobile plan with my Watch SE. Both the watch and the iPhone have current updates, the operator supports eSIM. I made a new eSIM through the mobile operator (I changed the tariff), but I can't pair it with the watch. I restarted the watch and the iPhone and it still doesn't work, I can see the tariff in the app - mobile data - but I can't open it. Unfortunately, the operator cannot help me, so I'm turning to you. thank you very much in advance for any help. The watch has been paired once and supports eSIM.