My bfb3000 was laying the raft for a part and was going fine and

My bfb3000 was laying the raft for a part and was going fine and then increased the amount of plastic flowing. Any suggestions on what is wrong and possible fixes?

Maybe your nozzle is too close to your bed. Then pressure builds up in your nozzle. When the pressure gets too high, the plastic squirts out.

Or another option is that your extrusion is set too high. Did you calibrate?

The computer program controls the extrusion and thats the second print like that we increased the gap between the nozzle and the bed hoping it would fix its self