[RECOVERY] start loop on TWRP after a backup on x2 gem-702L

I was passing by Rom KangVIP B015 (Android 5.0) and TWRP TWRP-ENG-5.0,
I was the original B003 702L, all works very well for several days,
I decided to make another backup with TWRP (with compression) externally on my sd,
all goes normally, and I then reboot,
and continually find myself on the recovery TWRP menu.

Can not start the system by download from TWRP.
I restored my backup but always the same.

I can put myself in download from the connected computer,
and I have access to the adb command.

by searching the internet, the problem has already produced on LG2 and other,
and there would execute commands either by download or in TWRP in terminal mode.

but I do not know if that works under the MediaPad x2,
and knows the commands to perform.

thank you in advance to all those who have the solution to this problem