On the StackedTrims Mod's Page it states that it is Compatible with this Mod, but when I installed both mods on the server, the 'better trims' mod stopped working.

I could break a deepslate instantly under normal conditions, but when I installed that mod, I could hardly break even a stone.

also when I downloaded the mod this text disappeared.

try opening an issue on the StackedTrims github, I think they should be able to fix it

I'll look into this, thanks