After installing rom my phone is turning off by it self

[Electrical1]

So I unlocked my phone and installed a rom, I used Qbking77 videos from youtube to do all the work, and it worked fine, then I installed Titanium Backup to uninstall pre-installed app (bloatware) I removed twitter, TunIn Radio and SoundHound, after uninstalling those apps my phone rebooted itself and the apps came back, I tried three times to remove those apps, and then I think the apps were removed, however now my reboots by itself every one minute, it turns back on, then less than a minute it reboots... what is the problem here and how can I solve it?? please help me

Thanks.!!