Not able to upload wiki

[smallpeoples343]

I've been trying to install MediaWiki onto my site, but whenever I try to upload the .tar.gz file, I keep on getting an error message from the browser that says "The connection to the server has been reset". I tried this on Chrome and Firefox, neither worked. Also, I tried uploading other files, and they still worked.

Extracting and compressing into .zip doesn't work either.

EDIT: Problem fixed