Creating A potion with Infinity modifier crashes game, putting one in your inventory makes the world impossible to enter.

After creating a potion with the infinity modifier on it (for a PvP server.) It crahed the game when I tried picking it up, I was able to re-enter that world, however I was determined to have this so I spawned one in, put a hopper below it, and connected the hopper to a chest, then I checked the chest, It was there! So I pulled it out of the chest, and now I can no longer enter that world, ever. UPDATE: This happens with every modifier (ie. Unbreaking, protection, fire aspect, etc.) Does anyone have a fix for this problem because that server was huge.