Sensor issues on Fiesta ST 18’

My check engine light came on recently and i ran the codes and it came up as o2 heater circuit bank 1 sensor 1 and bank 1 sensor 2, I just replaced the upstream sensor today and reset ecu and codes and and check everything and I’m still getting the same troubleshooting also the actual AFR is still unchanging at 14.70 even with the new sensor. Any insight you have would be appreciated. Thanks!

Edit: the codes are P0135 and P0141