Do you have PLC?
If not try to start it directly from TP:
1. Find the variable $TPRUNACCEPT and set it to 1.
2. Turn on your TP.
3. Select a program and press ENTER.
4. Holding deadman, clearing errors (RESET), press and hold SHIFT, press once FWD.
5. If robot starts motion, holding all above buttons, turn off the TP and finally release all buttons.
Let me know if it worked in your case.