Lightbox not working on Discourse

We can only support the official install process here as we can’t speak to the different variables in other install modules. If you can, try reinstalling using the official install process and see if this is an issue.

As a general tip though, try making sure you are updated to the latest Discourse version, see Latest release-notes topics - Discourse Meta for the latest, and see if the issue persists. If the issue persists, try using safe mode to rule out possible theme or plugin issues that may be causing the issue.

That said, we can only support the official install here.