More bug fixes

src/main/java/me/finn/unlegitlibrary/event/EventManager.java

@@ -50,6 +50,7 @@ public class EventManager extends DefaultMethodsOverrider {
 
         Object clazz = eventListeners.get(listenerClass);
 
+        synchronized (registeredListener) {
             for (Class<? extends Event> eventClass : registeredListener.keySet()) {
                 HashMap<EventPriority, HashMap<Object, Method>> priorityMap = registeredListener.get(eventClass);
 
@@ -67,6 +68,7 @@ public class EventManager extends DefaultMethodsOverrider {
                     }
                 }
             }
+        }
 
         eventListeners.remove(listenerClass);
     }