Plugin Edit Saves not Working

Good Afternoon,

I have installed a Plugin ( wpsc_supportTickets & PRO edition ) and have been editing it without a problem for a while. However, suddenly, the changes stopped working. It says on Plugins Editor that the File has been updated sucessfully, but the new implementations just doesn’t work – its like they haven’t been implemented.

I have also already unninstalled and installed the plugin again – and that is what surprises me the most, when I install again the original Plugin (without my edits), after having deleted the plugin, it still has my changes! I open the Plugin Editor and the code is exactly like the original, however, it has the edited features I had implemented!

It is not a browser cache problem, I have checked it already. It is also the only active Plugin on my Theme right now. And I have also tried changing Themes – the problem persists.

Could anyone help me? Does anyone know what might be causing it and what can I do about it?