My lightroom Catalog won't Backup !

When Hi close Lightroom Classic (LrC) I try to Backup my Catalog but get this message (see below)

My computer is in french so here is the translation in english:

Please check your folder permissions and 
make sure you have sufficient space on your backup drive and primary catalog drive.

I use my 3 To Fusion drive on iMac to do this and I have enough space on it.

What can I do ? Thank you for aany one help

If possible PLEASE answer me here:

PMD

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Legend

What MACOS?

Participant

Version 10.15.6

Participant

Thank you for your interest

Inspiring

First, verify that the backup location is what you want it to be.

Using Mac Finder, check the folder permissions on the destination.

If you are using Catalina OS, check the "security and privacy" OS tool and make sure all the options for LR are turned on.

Participant

Thank You. I will test all this now

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