Brim interrupted

The brim is not printed completely. In some places the brim is also printed too thick causing the nozzle getting a knock and the print head to fall over… see photo please.

I have the same problem for all new projects.The printer was calibrated. Where the brim is interrupted, the nozzle is just too close to the base plate. I have already turned the plate, but that does not change the interruption.

Can you help?