The red line is usually an indication that there is or are remnants of a previous AV and avast has disabled elements to avoid conflict. ashServ.exe is missing from the list and that is the main scanning process, so effectively avast is disabled.
I don't have any other AV running.
The question isn't running but installed or previously installed, simply disabling a second AV won't work, services and registry entries will still be presend and avast detects that. What may be disabled can easily be enabled so avast if it finds the presence of another on-access AV (enabled or disabled) will take mesures to avoid conflict.
So would you care to answer thes questions:
Are there any warnings or error messages ?
Do (or did) you have another resident on-access AV installed, if so what is it and how did you get rid of it ?