I got the exact same issue. It's only after I've inputted the first setting. After submitting the first setting it redirects to "/admin/content/site-settings" but same error as @gillesv. problem occured after upgrading to 10.2. Reinstalling the module doesn't change anything.
Hi all,
I have the same problem.
You can set layouts a 2 moments of development.
The first moment is by managing the layout of a content type. If I do it like that, there is no option to select a bootstrap layout.
If I go to "Content" and edit a piece of content. You go to the "Layout" tab, then you can edit this layout for this specific content, then IT IS possible to choose for a bootstrap layout.
So the problem is that the layout is NOT a option at the "Manage layout" tab of a content type, but it IS possible at a piece of content.
Is this a bug or is it the problem that I have set a couple of layouts myself before using "Bootstrap Layout editor".
I know that it is easy to say that my layouts that I created myself are the problem, but is it really?
I hope you guys understand my question and explanation.
Thanks