That’s not a Relevanssi class, despite the name. The prefix points at WooCommerce Multilingual, so I’d recommend you ask their support. I’ve never heard of this class, and don’t even know what it’s supposed to do.
Thanks,
but what is most interesting is that when I disable Relevanssi plugin then there will be no error anymore.. and web page will come back again
Well, yeah, it’s probably some kind of a Relevanssi compatibility class, so it’s not required when Relevanssi is not active. So that’s why there’s a problem only when Relevanssi is enabled. But it’s not a part of Relevanssi, and has never been.
Looks like the class exists in the current version of WooCommerce Multilingual (4.2.10), so if your version is not 4.2.10, update, and if it is, reinstall the plugin as the installation may be corrupt.
WooCommerce Multilingual fixed the issue. Everything works great now.
Thanks for everything.
