**## Versions

Betweenlands version:

1.0.6

Forge version:

10.13.4.1614 [1.7.10]

Singleplayer or Multiplayer:

Singleplayer [crash client]

Installed mods:

(( Betweenlands 1.6.0 ))
OptiFine_1.7.10_HD_U_E7

Link to full crash log

(Crash log click)

Description of the problem

How to reproduce:

Setting TheBetweenlands 1.0.6 with OptiFine_1.7.10_HD_U_E7 causes crash.

Expected result:

A game with shaders built into Optifine

Actual result:

crash

Pictures:

--**

Fixed in #1294

Hey, thanks for taking the time to report this! Unfortunately we do not support any version below 1.12.2 anymore. However, this looks like it might just be an incorrect potion ID, maybe try resetting the config or change the potion/elixir IDs in the Betweenlands config manually. If I remember correctly all potion IDs must be below 128.

Another error when changing the id effects. what to do?
here

Use OptiFine HD U D3