Problem Opening data with Tekks Editors

Getting this when trying to open gshop.data with Tekks Gshop Editor v4.

Code:

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at javax.swing.JComponent.processMouseEvent (Unknown Source)
at java.awt.Component.processEvent (Unknown Source)
at java.awt.Container.processEvent (Unknown Source)
at java.awt.Component.dispatchEventImpl (Unknown Source)
at java.awt.Container.dispatchEventImpl (Unknown Source)
at java.awt.Component.dispatchEvent (Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent (Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent (Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent (Unknown Source)
at java.awt.Container.dispatchEventImpl (Unknown Source)
at java.awt.Window.dispatchEventImpl (Unknown Source)
at java.awt.Component.dispatchEvent (Unknown Source)
at java.awt.EventQueue.dispatchEvent (Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters (Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter (Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy (Unknown Source)
at java.awt.EventDispatchThread.pumpEvents (Unknown Source)
at java.awt.EventDispatchThread.pumpEvents (Unknown Source)
at java.awt.EventDispatchThread.run (Unknown Source)

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Getting similar problem with El Editor..
Got the latest Java.
Is there a way to fix this kind of problem...?
Thanks