ttvd94

I don’t why it behaves like this, but someone already answered that.
https://www.ads-software.com/support/topic/multi-language-not-working

rename files to: mts_wpt-xx_XX.mo and mts_wpt-xx_XX.po
ex: mts_wpt-pt_BR.mo and mts_wpt-pt_BR.po

Oh! Maybe I should look for some other solution.
Thanks for your help.

I’m not sure if I got what you mean. However, of course there is no problem with Posts, but under the Videos, there is no tool for adding a custom field-as you see here: https://postimg.org/image/b98ku389d/

I upgraded the plugin again and went for the error-as you said. But there was no error anymore. I assume that it was an upgrade failure lats time caused the error. However, the videos where still missing which resolved by relinking the videos for each video-post (by unlinking them first) and now everything work just fine.

I appreciate your support and thanks for this plugin.

Thank you for your answer Alexander.

I’ve tried upgrading the plugin, but I assume that the new version is not compatible with my current theme. Once it upgrades, the players are gone from video pages, and it also gives an error when publishing videos (some missing function) and it cannot find the video links I provide, too.
I know that there might be some ways to adjust the theme, but it can take me hours of work.

Just wanted to see if there is any chance to achieve my purpose without having to understand relationships between the plugin and the theme.