Hi there Iruefi,
From the details you provided, we're unable to determine what the issue is with Face ID. We'd like to better understand what's happening, along with ruling out some possible causes:
- What exactly is happening with Face ID? The more details you provide, the better we'll understand the issue.
- You mentioned that your iPhone came into contact recently with water, but what leads you to believe it's related to what's occurring with Face ID?
- We see that the article above your post shows what to do If an alert says Face ID has been disabled on your iPhone or iPad Pro, but if this is the issue occurring, have you already tried all of the steps listed? Keep in mind that the last step listed would be to contact Apple Support to help set up an appointment for a tech to inspect it, or to set up an appointment on your own.
Cheers!