Error accessing folders Bridge

Goodmorning everyone,
yesterday I installed Bridge 2020, when I opened it the first time, when asked to access the desktop folder and the documents folder and to the download folder, I mistakenly said no !!! Now I don't know how to fix the error.
In the folders there is a prohibition sign, and a white arrow with the tip pointing downwards.
Thanks to those who will be able to help me .. I use mac os 10.15