It looks like some languages haven't been updated by the respective teams, in which case TB falls back to English when printing.
To resolve issues in the midweek template MW-schedule_1.htm follow the directions below (if you use schedule_2, look for the corresponding items.
I have not influence on the translation teams, and I cannot solve this for all languages, but it is probably about 5 minutes work.
[EDIT When you have successfully adapted your schedule, you may want to post it, so others in your language can benefit. If you get stuck during adapting your schedule (so not before you tried, I am sorry...), we can plan a Teamviewer session and we'll do it together.] Send me a personal message for that, please (by clicking my name above, and pressing the double cloud symbol)
Find the template you use: possibly MW-schedule_1.htm. It is in the theocbase installation folder in the folder called templates.
Copy that file outside (!) of that folder. And rename it in such a way that you can recognise it like MW-schedule_1_IT.htm (that is what I would choose for Italian, for which the issue was first raised. Whatever you name it, make sure the ‘MW-‘ –part is kept intact).
Open it with a good editor: Brackets, Code Writer (within Windows 10) or Notepad++. (Do not use MS Word or Windows Notepad). Now you are going to replace a few items, make sure to replace the whole thing including opening and closing exlamation points.
In line 60 replace !CONGREGATION TITLE! with the name of your congragation
In line 62 replace !TITLE! with your local expression for ‘midweek meeting’
In lines 87 and 421 replace !SONG! with your local expression for song and !PRAYER! with your local expression for prayer (not the other ones in that line like e.g. prayer-name or song-no!!!)
In line 101 replace !OPENING! by your local expression for opening comments
In line 123 replace !GW! by your local expression for Treasures from God’s Word
In line 213 replace !FM! by your local expression for Apply yourself to the Field Ministry
In line 327 replace !CL! by your local expression for Living as Christians
In line 328 replace !SONG! by your local expression for song
In lines 387 and 411 replace !CONCLUSION! by your local expression for concluding comments
Close and save.
Now finally do not forget to move (or copy) the saved document to the original template folder (you cannot change a file within that folder, so that is why you had to move it out first)
For accessing the database my personal preference is http://sqlitebrowser.org/
For editing templates I like to use http://brackets.io/