Blocking font url

Since our site has been live we have had a couple of people say that they can’t access certain pages on the website.
We have had a look and it looks like the security logs have blocked certain IP’s one they have tried to access a few times and it’s because of the below. as you can see the fonts are coming through as web pages and getting blocked. Are you able to let me know what we can do? We have turned off the 404 detection so that nothing gets blocked from now on. Are you able to let me know if you have seen this before and what you have done to overcome it?