erorr comunication_ passthru memory buffer empty

[powertdi]

Hello everybody. I got my OP2.0 wotked stable. But few days ago after I read/write pajero few times I got this message #passthru memory buffer empty#
Now I try another car and it same mesage. In my opinion its a somethig like cash memory inside or else..
Does anybody know about tis problem? and how to solved?
Please help can write back original file : )