Which version of Translator++ are you using? I use v4.10.30 and it can see untranslated things like the shop interfaces and dungeon status screen. So far I only translated the dungeon status screen (map009) and nothing immediately exploded. If you're on the free version of T++ then there are more up-to-date versions here on the forum, though not the
most up-to-date versions since Dreamsavior added anti-piracy measures late last year.
Edit for everyone: I also threw
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since we're striding towards a full translation so I thought it'd be nice to have a good, updated link. I extracted the game with JP locale, added a Deepl translation to the readme and version notes, then re-archived it. It should work without any issues (MZ games usually aren't that finicky), but if there's still problems then the only other troubleshooting I know is to rename the folders.