Leaked after perfereted plate

Hi,

I have noticed that some of the coffee is leaked into the collector basket. In between the nossle and the brewing unit. I have taken the machine apart and tried to install a new brewing unit but some coffe Is still leaked into the collector basket. I have tried to clean the plate that punctures the pod but still coffee leakage happens. Any idea what could cause this and how I can fix it?

Be

Fredrik