"Block" (a cursor shape) in the preferences dialog is erroneously translated into Polish as "Zablokuj". It should be, for example, "Blok". Location in the source code: https://git.xfce.org/apps/xfce4-terminal/tree/po/pl.po?id=5625bc0e0a33600a3a7233cf7f8f9dd36438358f#n1047
Hi Sebastian, Thanks for the report! Unfortunately, I cannot do anything about this error since I have no access to Polish translations on transifex. I did, however, report about it on our translations maillist: https://mail.xfce.org/pipermail/xfce-i18n/2019-September/008996.html Hopefully, one of the Polish translators will fix the error.
That's everything I could do, closing.