"Not authorised the use of Dropbox" error

Hi. I have a project compiled which uses images stored on my Dropbox. The exact error is:

"One or more projects contain assets imported from Dropbox, however you have not yet authorised the use of Dropbox. These assets will be offline until Droobox is authorised".

I haven't been able to play it on my mobile for over a month and have tried reinstalling Rush.

I have connected my Adobe Acrobat Reader on my desktop Dropbox account, and the images are all shown in the project when I play on my desktop, but I get the above error when I try to play on my phone. I have a Samsung S20+ running Android.

Any idea what I need to do so I don't get the error and all Dropbox images are shown?

Thanks