Why are texts not displayed on the site?

Question

css

In general, some people have this problem: https://cloud.mail.ru/public/4WLx/1wB7bouL1 and https://cloud.mail.ru/public/7tWs/YZ9QB8cX7
I don't know why this happens. Everything is perfect on my site, the layout does not work, the texts are all visible and everything is perfect for my friends, and from different browsers

Answer 1

Another question from the section guess the problem without seeing the code. Offhand - non-standard fonts

Answer 2

The problem is probably in the fonts, but browsers should load the system ones in case the custom ones did not work.
It is worth looking at the elements through the element inspector, at the same time reloading the page and seeing what is written in the page errors.
Another assumption: layout and text are generated by different pieces of code, the second one does not work out due to third-party scripts.