Hello

I have deciphered the error codes, but it has not become clearer.
E98 - there is no connection between the system controller and the multicontroller.
E38, E07, E10 - the drives of all contactors are faulty, but they are working properly.

The main controller board is fine too, I didn't find any broken parts. And it works for a few minutes, only then these errors come out.

Can you tell me, please, what is the name of the software for this model of forklift? which one can I connect the computer to the main controller to check the settings?

And there is also a small seven-segment indicator on the system controller board. I can't find anywhere what it's for. when I change the main controller board to a perfectly serviceable one, the system controller does not work for long and starts giving an error on this indicator. Does anyone know what these F-letter errors are?