Woocomerce Website Fixing

We have a woocomerce website which since a week or so ago when ever we try and edit a product or add a product, once we have put the details in it just sits trying to load and never manages to, the website is still taking orders but no longer automatically goes to the correct currency for that region, it also won't let us change any existing product tags or categories, wether its an edit or a new product it will not let you save the updates.

Looking to get this resolved ASAP