Problem seems like related to babble Plugin!
maybe try this:
cd /var/discourse
nano containers/app.yml
remove the line
- git clone -b beta https://github.com/gdpelican/babble.git
and then Hit Ctrl + O to save the file, Ctrl + X to exit nano and then Run
git pull
./launcher rebuild app
This will disable the beta version of babble but the rest of the site may be back. then, Try revisiting babble’s repo and install the latest stable version!
To install Babble’s stable version,
add this line to where the old line was removed from:
- git clone https://github.com/gdpelican/babble.git