Fix Version

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 # Minecraft expectations
-paper = "1.21-R0.1-SNAPSHOT"
+paper = "1.21.3-R0.1-SNAPSHOT"
 fastutil = "8.5.9"
 guava = "31.1-jre"
 log4j = "2.19.0"

worldedit-bukkit/src/test/java/com/sk89q/wepif/TestOfflinePermissible.java

@@ -376,4 +376,9 @@ public class TestOfflinePermissible implements OfflinePlayer, Permissible {
         return null;
     }
 
+    @Override
+    public @NotNull PersistentDataContainerView getPersistentDataContainer() {
+        return null;
+    }
+
 }