Problem fixed.
I had to restart my computer
You may want to test this guide : https://support.apple.com/en-us/HT203413
If it still doesnt work you probably have to use a light wallet like Yoroi (its also an offical wallet).
Cheers
Fabian
2 Likes
Changed category to tech support as more appropriate.
1 Like
problem fixed, i had to restart my computer 
2 Likes