Hopefully they come up with something.
Now every time before I use a web browser. I either do a scan or check activity log.
Hoping it doesn't turn off and leave me vulnerable.
Not what I paid for 
Hi,
Try to reset Accessibility.
To do so, go to your device's phone Settings > General management> Reset> Reset accessibility settings (since each device is different you might have to search for "Reset")
Also, check your phones battery power saving settings to make sure the app does not get killed.
Hi
Have done Reset. Reenabled Web shield, will now wait and see.
Checked Battery settings it is okay
Still having trouble with web shield turning off.
Get no warning web shield has turned off.
Once again the only way I find out is to manually check.
I have lost confidence on Avast mobile protection.
I am seriously thinking about going back to Norton Mobile Security. (I had no problems)
Changed to Avast because Avast Premier Security 10 Licences.
Not sure now as Norton has bought Avast.