Good Morning guys n gals

just bought my first used Hyster R2.0H electric truck. Bought at auction so yes I am aware I could be buying problems however besides the battery being flat the only issues I am having are as follows:-

*Alarm only works in reverse (not sure if it should work going forward ?)
*Lights dont work inc LED beacon.
*Mast won't raise

regarding the mast , I can look on the screen and when I move the joystick to the down position it does show on the screen as going down (with an arrow) however when I move the joystick to up the screen does not show as it is going up.
I have pressed the pedal and I have checked for error codes however there are no error codes.
I wasn't sure if there was a safety switch I should be aware of ?
Also the previous owner has bypassed the seatbelt switch.

any help or guidance would be greatly appreciated