I am getting bubbles and a bulge at the bottom layer of my 3D print I am printing ABS on an Ender 3 printer at a temperature of 240 °C on the nozzle and 110 °C on the bed. I am getting the following result:

Is there any way I can fix this?
I think that your bed is too hot because the bubbling is only on the bottom layer, if it was through out the entire print, I would say that it is your nozzle temp and you should do a temp tower, but because that isn't the case try lowering your bed temp