How to flash custom rom on a turned off phone using TWRP, please help fast?

[ThoughtfuLGymRookie WhoLovesWatchingStuff]

help brahs,

I have the Bacon (OnePlus One) an I was in the process of flashing a custom rom. already had the gapps and system zip files on the phone. while on TWRP, i made the mistake of wiping my internal storage, which deleted the important system files as well. now im stuck in twrp , how do i continue???????

 

[Rukbat]

Find a ROM for that phone in TWRP format, put it into your TWRP Bsckup folder (in the <number of phone> folder. In TWRP, hit Restore. Choose the file you found, and TWRP will "restore" it as your current ROM. Then you can flash the custom ROM you were installing (and, as soon as you get it set to your liking, restart back to TWRP and Backup [name it whatever it is]).