Instax mini 90 Exposure incorrectly

splashed some water on lens and now photos come out either too dark or too bright.

Something seems to be messing with auto exposure. A strange thing that I notice is that when I’m shooting under bright daylight and select no flashing, the no flashing icon keeps blinking which seems to be telling me that light isn’t enough to choose no flashing? Maybe it indicates light receptor is malfunctioning? If so, what are the fixes I could try?

Attached the sample photos I took, you can clearly see some are being way too dark and some are way too bright