Name every section header
The brackets are here, but the song part they open is not named, so this line marks nothing. Choose a reviewed header for the language you are transcribing in — LyricLint writes the name between the brackets you already typed and leaves the rest of the line, a performer legend included, exactly as it is.
Example
[]
A lyricIn the workbench this reads: This section header is empty.
[Verse]
A lyricThe fix
This finding has no automatic fix — resolving it is a judgment call, so the workbench points at the exact range and leaves the edit to you.
Sources
The guidelines this rule enforces, as cited on every finding it reports:
Use song part headers verified Section headers, performer legends, and four differentiation styles
Song Headers in Different Languages verified Reviewed English section-header vocabulary