Denture Teeth A3 problems

Hello all! I’ve bought a Teeth Denture A3 resin with the hopes to print some teeth (individually) to fix up some old prothesis, in the hopes for not buying more acrylic teeth. Enormous was my surprise that, after 3 attemps, there was nothing on the build platform… even if inspecting the tank, nothing solid.
Is there any special configuration for this resin on the 3B?

Thanks in advance for answering!