cannot login / cannot reset to default firmware

Hi,

I have issues logging into flukso v3. While on the login page and input default user and password nothing happens.
When going to other pages like status, several error messages apear.

I have sucessfuly logged in via sseh root/root default login credentialts.

While trying to reset the unit to default firmware (pushbutton pressed for 120 sec and reboot) still same thing happens.

I have used several browser on different devices and clearing cache but same result.

I have tried to login via LAN cable on 192.168.255.1 and on WAN cable via DHCP alocated IP...same issues.

What can be the issue ?
How can I put the firmware to default ?

my device serial is FL08000322.

Thanks!