Not unlikely, you will be able to solve this problem by a mere resetting. Please, do the following:

• Unplug the dishwasher (or turn it off), wait a minute and plug it in again.
• Check the hoses and tubes behind your dishwasher: not unlikely, some of them got kinked or blocked when you moved it last time. Also, make sure that the tap is open.
• Launch a cycle
• If the error is gone and dishwasher is operating smoothly, no problems should occur.

If the resetting does not work, please:

• Make sure this is the same error as the one that occurred before the resetting.
• If this is a different one, check the manual and troubleshoot it.

If none of your steps has worked, address a qualified technician.