01b7f07c41
Root cause: creatureLevels entry for 'Uneasy Citizen' was {} (empty table)
instead of {minLevel, maxLevel, rank}, so creatureLevels[name][1] was nil.
Added early-return guard in _GetLevelString: if creatureLevels[name] is
falsy or has no numeric level at index [1], return name unchanged.
Also updated CHANGELOG.md [Unreleased] section with this fix.