Hi there and welcome
Can you please remove the power to the printer and the wifi router (so disconnect them from the power sockets) and shut off your computer
Wait 5 minutes, then connect the power to your wifi router.
Wait 5 minutes then connect the power to the printer and turn it on.
Then power on your computer and tell me if it will now print please.
Let me know the results.
whats the exact error it is giving you please?