When I try to turn on the robot it beeps two times and does not show up anything. The wierdest part is that in creative it all works fine but in survival it's busted. I tried disasembling it and assembling it again but it didn't work. Does anybody know how to fix it?

Is there a floppy disk or an OS installed on the potential HDD, or at least some code in the EEPROM ?
Two beeps mean 'No bootable medium found' if I remember.

I got it, I was puting in a EEPROM insted of an EEPROM (lua BIOS)

Yeah, you can also boot up an existing computer and replace the EEPROM by an empty one, and then flash it. It allows to not spend a book each time, and you can also use a custom firmware with that method.
But of course if there's no code at all it might not work...