Maybe this is the same error on my Site also. problem on opening through a mobile browser.

The problem is when I open my website through desktop browsers, it opens properly and loads properly, but when I try to direct my website link through mobile it is not open, and download some tmp files. how can I find an error?
After That when I deactivate all plugins after activating and trying to load it works properly.
and again after some hours same Issue.
maybe some bugs on the mobile slug/homepage or somewhere. because when I open through mobile other content links open but the main website link is going to download some TMP file like this image.