No SIM after flashing One +7 pro

I flashed e over TWRP on a new One +7 Pro (0.11-2020090772203). Now the SIM card is not recognized. WiFi, however, works. I plug the SIM into another phone it works. What now? Back to an old Stock Rom and than return to e?

Thank you in advance

Regain your privacy! Adopt /e/ the unGoogled mobile OS and online servicesphone