after update joomla 3.7 language issue

[jankoo]

hi.
i had eshop on joomla 3.6.5 and latest VM. in slovak language. all was working fine.
but after i update my joomla to 3.7 many VM items in frontend are showing ENG language.
and in backend many VM items display translatable tags as COM_VM_CFG_DEBUG_MAIL - this was also working before joomla update (see in attachment)

1. default site/admin language is slovak
2. in vm multilanguage setting i have set only this one language
3. i try, this behavior also without my joomla template
4. i try download and re-install latest vm slovak package
5. i try download and re-install latest vm package (see strange message after install in attachment)

what could be wrong?

[jenkinhill]

There are language handing changes and issues with Joomla 3.7 - just see the Joomla bug tracker and expect J3.7.1 in the not too distant future!   https://issues.joomla.org/tracker/joomla-cms/

I'd stick with J3.6.5 for the moment.

[jankoo]

ok.. thanks a lot for fast answer