Question [Q] BusyBox, AdAway and NTP Server lost after restart of device

First of all I am not able to change ntp server. I am using Faster Fix app for that. But after rebooting my device the settings are gone. Same for AdAway. After downloading and updateing hosts file all seems to work until reboot, than AdAway is disabled an ads are shown. Third app with problems is TWRP Manager. It sasy I have to install BusyBox in bewest version. After doing so it works, but after restart BusyBox is again an older version.

My device is HTC One, my custom rom is Android Revolution HD 71.0.