Step to reproduce:

1. Install WordPress fresh. In my case, it is on multi site enabled.
2. Import xml file.
3. Change permalink setting to **Day and name **.
4. I use TwenTy Twenty-Five theme.
5. Visit front page of installed site. Go to bottom of the page, click on page 2 or 3.

Showing critical error, or if you set WP_DISABLE_FATAL_ERROR_HANDLER to true then it will showing Error code: 500 Internal Server Error.

Sadly, WP_DEBUG and WP_DEBUG_DISPLAY was set to true but no debug log in wp-content. So, no clue.

OS: Windows 11
PHP: 8.4
WordPress: 6.9-alpha-60655