File not found error AllItems.apsx list pages using KWizCom web parts
I recently, installed KWizCom web parts for a client. The parts seemed to work without a flaw; but while configuring them, we ended up having to build a couple of new web application.
However, the web applications only send us File not found errors when we go to All Items. aspx on all the list pages (i. e.: Solution gallery, Web Part Gallery, and etc).
I was able to rule out it being due to applying custom branding, and decided that it was due to brand new site collections and web applications. I posted the error shot below.