Error when editing topic, how do I troubleshoot?

[stephtara (Stephanie Booth)]

I’ve been working on my site a bit and am now having errors when trying to edit topics (happened on two different ones, a recent one of mine and somebody else’s that is older). I’m logged in with my admin account.

How can I figure out what is going on – where do I look, how do I troubleshoot?

Thanks for your help!

[Moin]

Is there an error in your browser console? That’s what I usually check first. yourforum/logs might have additional details too.

[stephtara (Stephanie Booth)]

yikes, so much red and orange stuff in the Javascript console, and not sure I’m able to understand it all!

Failed to load discourse-custom-wizard for example