Script is hanging... What's that?

[Exseven]

I've got some problems with the save screen lately...
It doesn't happen everytime but sometimes, when I call the Scene_Save, a pop-up with "Script is hanging" appears.
Fortunately, it is only when the Scene_Save is called.

The weird thing is that it doesn't happen while saving, it happens while calling the Scene_Save (From menu or from maps) and only sometimes...
It is annoying because when I did an hour of playtesting and I want to save the progress, this pop-up comes out of nowhere for some reasons and I cannot save... 

Does someone know how to solve that problem?

 

[dadevvtsvre]

Is there any other scripts that may interfere with it or cause errors? Perhaps that would help a little. If not, I'm not sure what the problem is.

 

[Exseven]

Well, I made a menu myself but I deleted the default one so I don't think the problem is there...
The game itself works fine, no lags and bugs. The only problem is that error while calling the save menu.
There's no problem calling the loading menu.

I'm not even sure if the problem is the Scene_File or the Scene_Save or something else...
Thanks anyway for your help!