Hi,
On Sun, 2021-10-24 at 23:55 -0500, Jingyi C. Shi wrote:
I am restoring my mediawiki website on a new server. It happened this error: [4027854c] /dir/index.php/Welcome_to_MyWebsite MWException from line 1287 of /var/www/xxx/dir/includes/parser/Preprocessor_DOM.php: PPFrame_DOM::expand: Invalid parameter type
Please see https://www.mediawiki.org/wiki/Manual:How_to_debug to get a stacktrace and provide MediaWiki and PHP version information for both servers.
Thanks, andre