I tried this before and it isn't an option that appears "storage/allow storage"Try - long press Gmail icon, select App info, scroll down to Permissions, Allow Storage.
Good luck
Storage isn't an option in the GMail app permissions, so what exactly are you trying to do within GMail when the error appears? Because it seems you might want to enable the disabled permissions (Camera/Phone) to get over the error.
And this is on my A14 5G....Here's what comes up on my S9