I suspect that the issue is caused by missing whitespace in Transifex, but I have a hard time finding the faulty strings, and the ones I found are actually correct:
Thanks for contributing to the Polish Discourse translation
This particular issue:
only occured for a very brief time and is now fixed. It is not related to any of the other issues in your post. Is your site up to date? that issue should go away as soon as you update.
For the other two issues. Can you please provide more context? Like what the issues are and where you’re seeing them in the interface so that we can try to fix them?
I know this is the notification panel in the user menu, but I’m not sure what the issue is here.
there should be a space between 2 and odpowiedzi (“replies” in Polish), but there is none
This is text generated by Chat Integration plugin in a Telegram notification. It’s missing a space between the username and “opublikował” (“has published”)
Also, the same issue (missing whitespace) is present in the “From” header in emails sent from Discourse: