Reply To: Issue with returning to default language page
To summarize the solution from our previous email conversation.
Right now the Croatian link takes the current url as default value when the page language is unknown because Croatian is the default language of the site.
The next step is to set up the urls for each post/page.
When you edit the post you should see in the sidebar of the editor the following language box :
Additionally here is a Step by step implementation of Language Switcher in a single wordpress website: