parking sensor failure

Just started getting this problem on my Ridgeline. It actually started while my vehicle was driving and in motion. I attached a picture of the warning message from my dash as well. I ran my Code reader and no error codes come up??? Does anyone know how to fix this or what the issue is? thanks

Every time it rains my front passenger parking sensor falses? Anyone else had the same problem? I could understand if it was covered with snow but rain?