EXCEPTION SEVERE java.lang.NullPointerException

Pretty new to RSPeer and just came across this during the script running (bzulrah)
and tips or anything is much appreciated

[03:32:37] EXCEPTION SEVERE java.lang.NullPointerException
at java.desktop/javax.swing.ImageIcon.(Unknown Source)
at burak.script.zulrah.tasks.ui.4.IIIiiIiiII(e:24)
at burak.script.zulrah.tasks.ui.4.IIiIIIiIII(e:40)
at burak.script.zulrah.tasks.ui.4.(e:186)
at burak.script.zulrah.0.IIiIIIiIII(nb:463)
at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

oh oops ill fix that, shouldnt impact the script though