src/de/steamwar/spectatesystem/PacketProcessor.java

@@ -70,7 +70,11 @@ class PacketProcessor {
     private void runSync() {
         synchronized (syncList) {
             for(Runnable runnable : syncList) {
+                try{
                     runnable.run();
+                }catch (Exception e) {
+                    Bukkit.getLogger().log(Level.WARNING, "Failed to execute packet", e);
+                }
             }
             syncList.clear();
         }