BackWPup

Hi,

I have a urget problem. After backing up a WordPress site, which worked without problems I needed to copy the very same Site to a different host. I could restore the backup and the site worked fine.

But. I cannot istall new plugins nor delete, rename or upload files via FTP that arre in subfolders in root.

Do someone know why. It seems a conflict with the permissions of files and folders. I am not sure whch OS is working on this host, but I heared that this errors frequently ocurr with windows severs.
But I have no clue how to fix this.

Can anyone help? Than you in advance!