Thanks again for trying to help me. Unfortunately it’s not working. The thing is that all icons are working. Only the Home button and the envelope in my main menu are missing. In Safari it works fine. Also with w3 total cache activated. But in chrome it’s not working.
I use these codes:
<i class="fa fa-home" aria-hidden="true"></i>
<i class="fa fa-envelope" aria-hidden="true"></i>
I tried to change them to the ones fontawesome.com shows (for example: ) But it doesn’t help. If I change it it even does not work in safari anymore.
I deactivated w3 total cache and left it deactivated for now.
Do you know what else I can do?