dose anybody know what this is and how to stop it all classic versions keep crashing[BUG]

[juasid]

(00:04:14) Java version: Oracle Corporation, Java(TM) SE Runtime Environment, 1.8.0_411-b09
(00:04:14) System: windows 11, 10.0, amd64
(00:04:14) Detected launch method: classic
(00:04:14) Loaded in: 82909700 ns
(00:04:16) [Beta Evolutions] Authenticated with 0 nodes
(00:04:16)
(00:04:16) Classpath:
(00:04:16) C:\Users\monte\AppData\Roaming.betacraft\versions/c0.0.9a (1).jar
(00:04:16) C:\Users\monte\AppData\Roaming.betacraft\bin/jinput.jar
(00:04:16) C:\Users\monte\AppData\Roaming.betacraft\bin/lwjgl.jar
(00:04:16) C:\Users\monte\AppData\Roaming.betacraft\bin/lwjgl_util.jar
(00:04:16)
(00:04:16)
(00:04:16) Loading addons:
(00:04:16)
(00:04:16) /default.gif -> 1
(00:04:16) /terrain.png -> 2
(00:04:16) /char.png -> 3
(00:04:16) java.lang.ArrayIndexOutOfBoundsException: -120
(00:04:16) at com.mojang.minecraft.level.Level.tick(Level.java:206)
(00:04:16) at com.mojang.minecraft.Minecraft.tick(Minecraft.java:349)
(00:04:16) at com.mojang.minecraft.Minecraft.run(Minecraft.java:207)
(00:04:16) at java.lang.Thread.run(Unknown Source)
(00:04:18)
Client closed.

[Moresteck]

Use separate instances for different versions.