net.minecraft.class_148: Rendering screen
at net.minecraft.class_757.method_3192(class_757.java:890) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1523(class_310.java:1177) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1514(class_310.java:768) [client-intermediary.jar:?]
at net.minecraft.client.main.Main.method_44604(Main.java:244) [client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:51) [client-intermediary.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:468) [fabric-loader-0.14.21.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) [fabric-loader-0.14.21.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.14.21.jar:?]
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1013) ~[?:?]
at java.util.ArrayList$Itr.next(ArrayList.java:967) ~[?:?]
at net.minecraft.class_437.method_25394(class_437.java:106) ~[client-intermediary.jar:?]
at net.minecraft.class_465.method_25394(class_465.java:104) ~[client-intermediary.jar:?]
at io.wispforest.owo.ui.base.BaseOwoHandledScreen.method_25394(BaseOwoHandledScreen.java:156) ~[owo-lib-0.9.3+1.19.jar:?]
at wraith.alloyforgery.client.AlloyForgeScreen.method_25394(AlloyForgeScreen.java:39) ~[wraith-alloy-forgery-2.0.20+1.19.jar:?]
at net.minecraft.class_757.method_3192(class_757.java:881) ~[client-intermediary.jar:?]
... 7 more

Please see #80 first

i already installed charmfixer, It did not help

Please see https://fabricmc.net/wiki/player:tutorials:logs_ml:windows. We need logs to help you debug what mods could be causing the crash.

Bumping this issue. Are you still experiencing this problem? We are unable to help you without anything to go off.

Closing this as it has not received a response in a long time. Should you still be experiencing this issue, please re-open it or make a new issue.