Hi. I encountered the following on an Opal Linux installation.
Errors: the database could not be loaded because of errors.
opal.projects_databases(o) reveals nothing, but I can see that MongoDB is running (systemctl status).
Based on a previous thread, I think somehow no databases were registered: Cannot add table to Project on opal
I went into Administration/Databases to manually register a Data Database, however when I test it I keep getting
Failed to connect: 
What could be the issue here?