Other European Frequent Flyer Programs - Croatia Airlines changed my flt by 10 hrs

I was booked FRA-DBV on a 9:30A nonstop 11/22. That flt appears to have been eliminated. They changed me to 7P nonstop that day.

There is a 9:30A FRA-DBV that is a connecting flight thru Zagreb with 50 minutes connection time.

Is 50 minutes long enough to clear imm and make connecting flight with carry-on bags only?

Thanks for any advice/suggestions.