axdr After new installation I had to copy /vendor/components/font-awesome/fonts to /assets manually What did I miss during the installation? I do not think I should have do this if all would be allright. I found https://discuss.flarum.org/d/697-devflarum-sandbox-server/29, but it seems to be not exactly what is needed.
duman axdr if it's like that I provided a solution one message later and he said it worked. You may try as well!
axdr duman Fonts must be in /assets/fonts but in /assets was not the folder 'fonts' after installation.