Greetings,
Wow, someone actually playing with this mod.... Anyway, I guess the problem is you have only T2 card in your chest. Back when I was designing this mod, for some reason I decided count updates level by level, so T2 card does not work if T1 card isn't in the chest as well. Same goes to T3 card. To work properly it needs T1 and T2 also be placed. I guess I even mentioned it in item description.
In case script recognizes your cards, it is indeed must become x2, x4 or x8 CRAFT
Edit: yeah, you figured that out while I was writing the answer. I did my best to explain everything in descriptions, so that's not just filler text made with GPT, it actually has instructions what does what