Some cards, as far as i know, pokemon and trainer ones, cant charge the images and data, reporting a overflow error to the console.

it dont make the game crash (so i cant apport a crash report), but i cant play tcg at all.

here is my mod list for the server:
biomes o plenty - 7.0.1.244
chameleon - 4.1.3
hwyla - 1.8.26-B41
jei - 4.16.1.302
journeymap - 5.7.1
pixelextras - 2.5.11
pixelmon - 8.1.2
reap - 1.5.3
rustles - 1.0.5
storage drawers 5.4.2
tcg 4.0.1
veinminer - 0.38.2.647+b31535a

and my personal list of mods:
Biomesoplenty
Bop patch - 1.0
chameleon
hwyla
jei
journeymap
optifine - HD_U_F5
pixelmon
reap
storagedrawers
TCG
veinminer

Hi,

TCG has not been updated for the newer versions of Pixelmon yet, which is also why it has the "bug" icon on the downloads page. Last I heard an update was in the works, but I don't have any further info there currently.

For now, you'll want to make a backup of your current game state and then remove the mod. You can then confirm the removal of mod items in-game, and stuff should work again from there.

Happy holidays! (and sorry for the bad news here)

(PS: You may want to update Optifine to the latest experimental build for 1.12.2, as that fixes some rendering-related issues on newer Forge versions)