I have a 2005 Monterey Laguna IV. This happens to me when I hit the emergency stop of the air leveling when Becky says we are level enough, especially in a situation where the front is coming up and the rear is going down. A new Beaver mud flap is $600+. Bent one, won't do it again.
It happens when I go to air up in the morning when we are getting ready to leave, and the slides need to come in. So, I do this, and all is well.
In your electrical bay there is an HWH reset button that right next to the toggle switch for the generator slide. Its bright red. Hit it once and you should be good to go.
Here's a picture below. Click on it to enlarge it.