T4 framework and 4SEO by Weeblr - error 500

We are using T4 Framework with JA Coach or Blank BS5 template together with Joomla 4 and 4SEO plugin by Weeblr - https://weeblr.com/joomla-seo/4seo.

The 4SEO custom 404 error page doesn't work with both JA Coach or T4 Blank BS5 template.

If any of the following options are enabled in 4SEO:

The following error 500 is triggered - "Call to a member function toArray() on null".

The error can be seen below:

This looks like an error in T4 framework plugin. Can anything be done about it?

Update: it's working if you set menu item for 404 page manually via 4SEO 404 page settings. We put menu item different than home page.

ccsupport Glad to hear that!