I installed Gluetun, and have deluge and sabnzbd pass through it.  I have everything working.  Leaving it overnight, and right now, I see "unversioned API: requested URI not found" when accessing webui of Gluetun, and when accessing both deluge and sabnzbd, I see "about:blank#blocked". All other docker images seem fine, and still working. What could be the problem?  

This happened to me again, and I just thought I should share the solution to the problem.  It turned out that I made some changes to my Unraid's IP address.  Since the IP address is new, I can access deluge and sabnzbd using it's new IP ADDRESS.  Accessing the container via dashboard, selecting webgui gives me the problem "about:blank#blocked."