is broken....

ok so im trying to upload a .zip file of a few new models ive worked on lately, i click browse, find the .zip file and click open, when i click upload however, i get this upload error returned to me.
“File wasn’t a zip file! (application/x-zip-compressed)
Zip File Function error: Can’t open file
whats happening here, as ive looked at the path entered in the bar next to the browse button and it is the path of my .zip file?

Try making it with winrar or something

i always do it with winrar, ive been able to upload in the past but now…i have this wall of a problem…