Login page does nothing

After updating to 16.0.1 I cannot access the web interface of my cloud any longer because the login page does not react properly.

The ouput of my nextcloud log:
{“reqId”:“hRc9wqq0tP8fWGkAzyyG”,“level”:3,“time”:“2019-05-21T20:16:45+02:00”,“remoteAddr”:“”,“user”:"–",“app”:“PHP”,“method”:“GET”,“url”:"/login",“message”:“Invalid argument supplied for foreach() at /var/www/nextcloud/lib/private/Files/Type/Detection.php#107”,“userAgent”:“Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0”,“version”:“”}

The desktop client works fine and all data is synced.

Only problem: I cannot access the web interface.

Help is very much appreciated

i have solve this issue by disable app “default link open”

by using ssh
occ command app:disable defaultlinkopen

Thanks copos77!
it works again