> For the complete documentation index, see [llms.txt](https://hotro-hoadonbachkhoa.pmbk.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hotro-hoadonbachkhoa.pmbk.vn/cac-loi-thuong-gap.md).

# Các lỗi thường gặp

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