Hi @Mahmoud Abdel Moneim
As I could not reproduce this issue on my server, to do some troubleshooting, could you rename other folders in this site? If so, you could check whether you have right permission on this folder through "Manage access":
If not, you could check your site permission in site settings and permission in this library settings.
In addition, you could check whether this issue happens in other site or other accounts.
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