Problem with Ariston LD87 dishwasher?

A couple of weeks some problems with my dishwasher
Ariston LD87 started. The engine blocked and on the display some fault/error codes were showed. Fortunately we succeeded in starting the engine again. We reset the dishwasher and it did again. After 3 times the problems started again. The fault/error codes were there again. Everytime an other one. AL03, AL05, AL10. We tryed to reset, but this time we were not lucky. The machine does not work. Anybody any idea what is wrong and what can we do about it.