Hello @Steven010
have you tried to follow the examples given in the documents listed here?
From what I can tell your modem is connected to LTE-M1 but with AT+CIICR (a command that doesn't exist for SIM7080G) you try to setup GPRS which doesn't match LTE.
Have a look at for instance the document explaining a TCP/UDP connection. I think your next command should probably be AT+CNACT=0,1 to activate a PDP and then AT+CNACT? to check for an IP address. And then go from there.
Thanks
Felix