Default [Q] One S Stuck in bootloop after installing Viper 3.0.0

Hi Guys,

Yesterday I installed Viper One S 3.0.0 on my Phone.
Installation went ok. Used TWRP by the way.

After the message of succesful installation i rebooted the Phone.
Now it's stuck in a bootloop. I can get into recovery, but there I cannot do anything. It doesn't seem to see the Internal storage, so restoring the backup I made of the stock ROM is also not possible.

Anyone an idea how to get this ROM to work, or how I can get back to the Stock firmware? I kinda need this Phone.

And does anyone know if the SD card is wiped? Or just not visible?

Any help would be much appriciated.