wp functions not working..

Hello,

A week ago my site started acting weird. It stopped displaying images on the site but it kept showing all the text etc. I try’d to reupload all images, but i found out when i want to upload an image or plugin it says “page not found”.. This is also when i want to see the image or plugin library..

Does anyone have any idea of how this is possible? I really try’d everything and nothing seems to work..
[please be more patient – do not bump]