A foreign object (such as a cherry stone or a small shard of glass) could be blocking the drain pump.
Remove the foreign object in accordance with the operating instructions for your dishwasher.
Consult the operating instructions for further information.
The linked video provides help for the latest G5xxx and G7xxx models.
Additional information can be found in the linked video.
If the fault persists, please contact us or book a repair appointment online.