Hi,
just installed "Booking System" and made the setup.
It's a pretty nice Plugin!
But unfortunately the language does not change.
I read the docs several times and followed every single step.
I enabled "German".
[dopbsp id=1 lang=de] changed the calendar itself (month and day names) into German.
Everything else frontend and backend is still English.
According to this: https://wordpress.org/support/topic/german-language-file-2
there should be a "de.php". I searched the ftp and couldn't find any.
I tried it with Dutch, Polish and some other languages. Same issue.
I automatically installed the plugin in the wp admin area.
Did I miss anything? Thanks for helping in advance!