First of all, sorry if my english isnt 100% but i will try my best.
So i rooted my phone using this guide called 'How to Root HTC One! [Windows/Mac/Linux]' (i cant post the url since i got under 10 posts) and everything has worked perfect. But today i decided to do a factory reset and everything went ok. When i had to reboot my phone after a update i got into the TeamWin softwaremenu for some reason. I started to mess around and suddenly i had deleted the backup of my phone with all the stockfiles, data etc! Yeah i know, im stupid. But i thought that wouldnt matter, so i rebooted the phone again and i only got to the screen with white background and the green HTC logo and i couldnt get into the OS. So i went into the menu (i dont know what its called, i pressed volume down and power button) then factory reset and got into the TeamWin menu again. Pressed reboot and system, but the message "No OS installed! Are you sure you wish to reboot?"... So yeah, now i cant use my phone at all.
Does this mean my phone is broken forever, or is this possible to fix? I really hope you guys can help me!
Let me know if i didnt explain it properly.