The translations of the ToolBox page are seriously out of date, and I don't think we can get them back in sync with the English page - it was at one time removed from the translation system and then reinstated much later, so now it thinks, that the existing translations are OK even though they are not.
Anne and I agreed that it is best simply to delete the existing translations. We'll wait a bit though, to give you time to rescue your work. Some of it can be reused.
Ok, backup done. I think the Italian translation is updated because I checked every single messages some days ago. I believe the problem is related to the re-used numbers of text units.