I'm trying to print a multicolour object on a Creality HI printer with a CFS. It prints the first colour then just before it is about to retract the first colour it makes a bleeping noise and then stops with the following unknown error 2113. I am new to 3d printing and have no idea where to start looking at why I get the problem. All the videos I have seen using the Creality HI and CFS don't show anything I need to change they just seem to print. Can anyone help?