Since yestarday in the admin part to my store the loading box dont dissapear and i cant do many things, because the info is not loaded, any help??
What does your browser's error_console say and what does your PHP error_log file say?
You'll get a clue as to what's going on from those two sources (odds are your browser's error_console has a javascript error listed).
i found a java scritp error : jQuerry.buttonsPlaceHolderToggle in not a function line 135
What version are you running of the cart (yourdomain.com)?
I don't find reference to that jquery function in any version I have running here.
Do you have an addon that might have replaced the js/tabs.js file?