Hello, Filiphdan,
Thank you for getting in touch with us.
“WPML say i should contact the theme developer” – Could you provide us with screenshots of the conversation?
https://wpml.org/documentation/getting-started-guide/language-setup/language-switcher-options/
We do the next for you, please clear cache and check: https://prnt.sc/7BXNg5X9wyuc >
https://prnt.sc/82uclTJgLi_s
Let us know if you need any further assistance.
Kind Regards,
8theme team