Bavelloni alpa 103 cnc - need help.

Hi everyone, we have an old alpa 103 in the company and now we have problem whit it. In manual operation everything work but when start some program the head take the tool and left standing in that position.I got an error message: "X axis driver not ready" and "SELF-UND tracer out of position".
Sometimes head take the tool, goes on the starting point and stop(the same error message).

Please help
where to look for a problem.

Nicolas

They can be several things.
if you take the tool and scroll to the preseting and then it
* stops: it can usually be an error in the tool values, go to the tool table and verify that there is no missing T or @ value