AEG OKO LAVAMAT?

The machine was working perfectly untill the pumping out of the water came to a stop. I opened the pump remove a hairpin and clean it out. The impellorturned freely. I put the lid back and now the machine refuses to wash or spin....it lets water in and pumps it out. It goes thru the cycle. You ca hear it click-click. I look at the driving belt its fine, and the drum turns light and easy by hand.

What can the problem be?? Daan.