Ceramit catalyst too old?

Hello all. I broke open the Ceramit kit I bought from the local
jewelry making supply store and when I opened the screw top lid of
the can with the Catalyst (Part B), there was a resin like brown
substance under the lid.

Also, how do you open this thing? There seems to be solid metal under
where the screw top lid came off. I looked for a lid to pry off. B,
either it’s too crusted over to see or I need to cut the metal top
open. Would you Ceramit users out there please tell me what you

Thanks! - Hobbs