What you’re describing sounds like the 50mL catch reservoir integrated into the shuttle cover, intended to catch minor spills like this.
Source: https://sketchfab.com/models/ea9a47842a7d4751896993f902315119
You can “drain” the reservoir by gently dabbing paper towel in it to absorb the resin. Hard to say if resin dripped into the internal workings of your unit. I had that happen to me. You could contact Support for further instructions (and possibly permission to remove the outer cover from the unit to inspect deeper). You can also peer through the optical window to see if there’s any resin inside the chamber (although from what you’ve described I doubt there will be). I’d wear a hairnet or hat if you’re going to lean over the optical window (to help prevent dust / dandruff from falling onto it).