Refresh thumbnail function does not work on orion.managewp.com

Hello,

Since yesterday, the refresh thumbnail function does not work (on the management platform orion.managewp.com), for a large part of the sites managed with ManageWP. On a lot of sites the thumbnail image “error 403 forbidden” appears and although I tried several times to refresh thumbnail, and I deleted the site cache and browser cache nothing changes.

Thank you,

Radovan D.