PLEASE HELP! trackpad only works with 2 fingers

i recently upgraded from clover to OC , all working fine , BUT , my cursor only moves if i use two fingers instead of one .

here is my EFI - https://drive.google.com/drive/folders/1q3hORpZx6dfUrFxNAtTDTgXY1DUPvLMN?usp=sharing

i have dell inspiron 3442

i5-4210u

synaptics trackpad with ELAN touchscreen(touch works)

also another question .... if i remove PS2Controller.kext from my EFI , it does not boot , just out of curosity , WHY that happens?

thanks