No im not using custom font.
ok, i try to explane better, sorry for my english.
in the log i have font not found like i said earlier,
/wp-content/themes/xstore/fonts/glyphicons-halflings-regular.ttf
/wp-content/themes/xstore/fonts/glyphicons-halflings-regular.woff
/wp-content/themes/xstore/fonts/glyphicons-halflings-regular.svg
….so i upload the fonts in the theme directory to make the log writing stop.
after i updated the theme xstore the problem started again, of course.
but im sure i havent used custom fonts, unless its the slider revolution?
or the cache plugin? i dont know. Can you suggest something i could try to check out in order to fix this problem, thank you.