Question [Q] Android freezing

I have Alcatel OT M POP the phone is root and i install ROM Toolbox Pro. From Rom toolbox i have install some files from "Theme menager" and phone was restart after that phone began to freezing when open apps or when try to stop them.In the some places i found that it is a virus and i did factory reset but it is still freezing.That is because that app from the ROM toolbox is install to the system and now what to do ? I have looking to install a new framework but I can not find if someone has framework or has another way to fix it let us say.