I am the owner of the MIRO blackboard at the Science and Technology Museum in Milan.
Until some time ago I was able to upload files from my Google Drive (ilabsistemi@gmail.com) without problems, but now I can't do it anymore: when I try, the error message “403. That's an error.
We're sorry, but you do not have access to this page. That's all we know."
I tried to follow the instructions of the Help Center step by step (https://help.miro.com/hc/en-us/articles/360017731253-Google-Drive), but without appreciable results :-(
Best regards
Enrico