I'm a bit late to the party here but (if you've not already found a solution) would you be able to provide more information? What are some examples of files / warnings you are getting?
What software/service are you using that is showing you these warnings?
Any other weird behavior the site is exhibiting? Is it redirecting visitors to other places?
Sitecheck tool doesn't seem to be flagging anything:
https://sitecheck.sucuri.net/results/www.mamalovesparis.com/