Google calender abo in outlook is not longer working

Hi all,

up to now I was able to integrate my google calender to both, my company outlook and my private outlook. For some reasons I received synchronization errors for the calender and deleted it. When I want to reintegrat the google ical adress, outlook is shwing the options to integrate the online calender but when clicking ok, nothing more happens. Anybody an idea how I can solve this? A reset of the ical adress didn't show any effect...