Aromaticity Error

Checker searches for General, Basic, or Loose aromatic systems that can't be dearomatized or rearomatizing with the given method does not reproduce the initial molecule. Details on aromaticity detection.
Fixer offers:
1. rearomatizing (rearomatize);
2. dearomatizing the aromatic system (dearomatize).

Example :

Aromaticity Error checker (`aromaticity`)	Warning:	Fix
		Rearomatize (`rearomatize`)	Dearomatize (`dearomatize`)
General	ex_arom_chg.png	no	no
General	ex_arom_ch	no	no
Basic	ex_arom_ch	ex_arom_f	ex_arom_f
Basic	ex_arom_ch	no	no
Loose	ex_arom_ch	ex_arom_f	ex_arom_f
Loose	ex_arom_ch	ex_arom_f	ex_arom_f

Note : The 2-pyridone aromatized in general mode is corrected after a checking of aromatization in basic mode.
In this case, both rearomatization and dearomatization fix yields the same structure.