version yawp-1.21.1-fabric-0.5.1-beta3.jar
[21:38:47] [Server thread/ERROR]: Encountered an unexpected exception net.minecraft.class_148: Ticking entity at knot/net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:1025) ~[server-intermediary.jar:?] at knot/net.minecraft.class_3176.method_3813(class_3176.java:299) ~[server-intermediary.jar:?] at knot/net.minecraft.server.MinecraftServer.method_3748(MinecraftServer.java:912) ~[server-intermediary.jar:?] at knot/net.minecraft.server.MinecraftServer.method_29741(MinecraftServer.java:697) ~[server-intermediary.jar:?] at knot/net.minecraft.server.MinecraftServer.method_29739(MinecraftServer.java:281) ~[server-intermediary.jar:?] at java.base/java.lang.Thread.run(Thread.java:1583) [?:?] Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.class_1297.method_37908()" because the return value of "net.minecraft.class_1927.method_46406()" is null at knot/de.z0rdak.yawp.handler.flags.ExplosionDamageCalculatorInterceptor.method_29554(ExplosionDamageCalculatorInterceptor.java:36) ~[yawp-1.21.1-fabric-0.5.1-beta3.jar:?] at knot/net.minecraft.class_1927.method_8348(class_1927.java:193) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1937.method_46668(class_1937.java:573) ~[server-intermediary.jar:?] at knot/net.minecraft.class_3218.method_8454(class_3218.java:1079) ~[server-intermediary.jar:?] at knot/net.minecraft.class_9724.method_60220(class_9724.java:57) ~[server-intermediary.jar:?] at knot/net.minecraft.class_9712$class_9713.method_60220(class_9712.java:42) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1887.method_60045(class_1887.java:332) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1887.method_60032(class_1887.java:428) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1887.method_60021(class_1887.java:329) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1890.method_60116(class_1890.java:227) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1890.method_60139(class_1890.java:146) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1890.method_8209(class_1890.java:153) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1890.method_60154(class_1890.java:227) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1309.method_5670(class_1309.java:403) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1308.method_5670(class_1308.java:302) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1297.method_5773(class_1297.java:487) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1309.method_5773(class_1309.java:2468) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1308.method_5773(class_1308.java:372) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1642.method_5773(class_1642.java:238) ~[server-intermediary.jar:?] at knot/net.minecraft.class_3218.method_18762(class_3218.java:770) ~[server-intermediary.jar:?] at knot/net.minecraft.class_1937.method_18472(class_1937.java:498) ~[server-intermediary.jar:?] at knot/net.minecraft.class_3218.method_31420(class_3218.java:408) ~[server-intermediary.jar:?] at knot/net.minecraft.class_5574.method_31791(class_5574.java:54) ~[server-intermediary.jar:?] at knot/net.minecraft.class_3218.method_18765(class_3218.java:372) ~[server-intermediary.jar:?] at knot/net.minecraft.server.MinecraftServer.method_3813(MinecraftServer.java:1021) ~[server-intermediary.jar:?] ... 5 more

Hi, thanks for the report.

Has already been reported

I'll try to release a fix asap and close this issue if done so.

Should be fixed in 0.5.1-beta4