"Unable to connect to Home Assistant" after restart

Hi, I just restarted my Raspi 4 with Home Assistant OS and I can no longer access the Web Interface. It only shows “Unable to connect to Home Assistant” like in this picture: https://community-assets.home-assistant.io/original/3X/d/c/dcb1cf960fd26d9e6061bd22064c0fda900a6881.png
The “RETRY” Button fails.

After checking the error log via SD Card I only found this:

Jul 22 22:30:07 homeassistant 69cd0cd034ad[357]: 2020-07-22 22:30:07 ERROR (MainThread) [homeassistant.components.ipp] Error fetching ipp data: Invalid response from API: Error occurred while communicating with IPP server.
Jul 22 22:30:07 homeassistant 69cd0cd034ad[357]: 2020-07-22 22:30:07 WARNING (MainThread) [homeassistant.config_entries] Config entry for ipp not ready yet. Retrying in 80 seconds.
Jul 22 22:30:40 homeassistant 69cd0cd034ad[357]: 2020-07-22 22:30:40 WARNING (MainThread) [homeassistant.config_entries] Config entry for adguard not ready yet. Retrying in 80 seconds.

Repeats every 80 seconds.

After some research I found out that ipp is used for printers but I didn’t configure Home Assistant to use my printer. Also I don’t know if this error is the one that causes the startup of Home Assistant to fail.

I would love to hear your thoughts about this, thanks!

Try clearing your browser cache, Ctrl+F5 on the login page.

Thank you for your help, I just found the issue. My network configuration somehow broke yesterday and I could no longer access the PI’s IP.