Lost access to NAS, stuck !

Hello,
First of all, thnks you for doing an outstanding job on this FW+support, have been enjoying it for years !
However, I have lost access to my NAS this morning and cannot figure out what the problem is.
- The NAS shows up in my connected devices on my router and gets its correct IP (reserved on the router)
- DDNS works and public IP gets correctly updated
- I am able to login to the web admin interface fine
However,
- I can't login to ftp (permission denied)
- I can't access my shares from the network (mac/pc)
- I can't access anything on Webdav anymore (worked fine yesterday)
- I see the web-explorer and firefly servers show up as "not installed" (both worked fine yesterday), and I get an error 203 when trying to install them back on.
- Can't SSH (server refused to allocate pty).
Here is a screenshot from the "system info" page. Something looks awfully wrong regarding available/free space and the web-explorer server...
Can you please point me in the right direction to regain access ?
First of all, thnks you for doing an outstanding job on this FW+support, have been enjoying it for years !
However, I have lost access to my NAS this morning and cannot figure out what the problem is.
- The NAS shows up in my connected devices on my router and gets its correct IP (reserved on the router)
- DDNS works and public IP gets correctly updated
- I am able to login to the web admin interface fine
However,
- I can't login to ftp (permission denied)
- I can't access my shares from the network (mac/pc)
- I can't access anything on Webdav anymore (worked fine yesterday)
- I see the web-explorer and firefly servers show up as "not installed" (both worked fine yesterday), and I get an error 203 when trying to install them back on.
- Can't SSH (server refused to allocate pty).
Here is a screenshot from the "system info" page. Something looks awfully wrong regarding available/free space and the web-explorer server...
Can you please point me in the right direction to regain access ?