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@thuanhuynhh, have you been working with our Weblate installation? That's where the community usually contributes translations for future releases. As you can see, there are several conflicts between the changes you're proposing and the current set of translation files. That probably means that others have been working on the same translations through Weblate, and they collide with your proposals. See the translation guide for details on how best to contribute.

Hello @asmecher ,
I have updated via Weblate 100%
https://translate.pkp.sfu.ca/languages/vi/pkp-lib/

Thank you so much

@thuanhuynhh, thanks for all your work in Weblate! We merge translations from there directly, so I'll close this PR -- and continue to sync from Weblate on a regular basis.