Sentora move error

Hello i face a small/big issue i run/installed sentora on a arm box with debian 8 all was working fine except mail but that's not the problem, as my box odroid xu4 use the usb hub for adding extra space i need to have sentora on /mnt_usb1 so i moved /var/sentora to /mnt/usb_1/sentora mi site still working but can't access sentora panel anymore i mean the login page it display but as soon i press login i get

Thanks.