As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A "SMOKE TOILET" CAUTION MESSAGE WITH NO VISABLE SMOKE, BUT PASSENGERS WERE COMPLAINING ABOUT EYES BURNING. (FLT 4806) VERIFIED THAT DE-ICE FLUID CONTAMINATED THE BLEED SYSTEM. RAN APU WITH BOTH PACKS ON FOR SEVERAL HOURS AND SMELL/FUMES DISSIPATED.