Fixed version can be downloaded here https://ci.lucko.me/job/LuckPermsPlaceholders/2/ or in the PAPI ecloud.

Thanks for reporting it. :)

Thank you very much, and now it works very well.

But can it be localized?
I want to localize 18h 20m 12s to 18小时 20分钟 12秒

I use the function in PlaceholderAPI to convert it to that format, so you'd need to ask clip about changing it.