JSHIB
Check your header and footer and body tags
I found the source of your issue, if you use Chrome use search element. You will see the floating ad script there. The text will change as the ad floats to different positions of the screen. It could be because you have your two iframes for timeanddate.com and another. Get rid of that nobody needs to know your server time, that is a security breach in itself.
I have broken up the script so it doesnt appear on here but this will solve your issue
id="pic1" style="z-index: 9999; position: absolute; left: 123.071516772593px; top: 471.209803490116px;" a href="https://reehair.com/" target="_blank"
https://show.igooglefiles.com/pic.jpg
https://js.users.51.la/17683247.js
https://www.51.la/?17683247
https://icon.ajiang.net/icon_0.gif
This ad is in your readme.html file too. Check your header or footer.
script type="text/javascript" src="https://show.igooglefiles.com/pic.js" script script type="text/javascript" src="https://show.igooglefiles.com/new.js /script