Cat Tag Multisite Error

I didn’t see that plugin in the repository, but I would suggest contacting the plugin developer to make sure it is compatible with Multisite.

If you activated it on the network I would suggest trying this:

1. deactivate on the network
2. activate on a subsite

See if it works on the subsite after following these steps.

Here is the plugin.

https://www.ads-software.com/plugins/cat-tag-filter-widget/

I have already tested it on a sub-site. I know what the issue is. It’s a permalink issue. It needs to say /blog/ before /category/category-name.

That doesn’t mean it’s multisite compatible ??

Here’s your problem: https://plugins.trac.www.ads-software.com/browser/cat-tag-filter-widget/trunk/cat-tag-filter.php#L39

It’s not checking properly for permalinks. And looking at the code, it’s calling wp-load.php directly which is no longer accepted in the plugin repo, so I wouldn’t use that plugin.