CMLR-552 — Section format error
The section currently being defined is repeatable, but no name or not a valid name was used. Instead, an incorrect atom was found.
The section is opened, but it will not be inserted into CML tree and you should immediately close it (by typing the closing brace '}').
The error can be caused by using a name longer than the maximum allowed (currently 31 bytes), or a name consisting of illegal characters (e.g.
'@' or a digit at the name beginning).
Check your section format according to a proper section 5 manual page or by hint of C3H.
The exact CML path to the configuration node where the error occurs (interactive case) or line and character number (file case) is printed at the beginning of the message (before the colon).