Make sure it's the user's island that the target is being kicked from

src/main/java/world/bentobox/bentobox/api/commands/island/team/IslandTeamKickCommand.java

@@ -95,7 +95,7 @@ protected boolean kick(User user, UUID targetUUID) {
             return false;
         }
         User target = User.getInstance(targetUUID);
-        Island oldIsland = Objects.requireNonNull(getIslands().getIsland(getWorld(), targetUUID)); // Should never be
+        Island oldIsland = Objects.requireNonNull(getIslands().getIsland(getWorld(), user)); // Should never be
         // null because of
         // checks above
         // Fire event