a. Any action taken by a public body at a meeting which does not conform with the provisions of this act shall be voidable in a proceeding in lieu of prerogative writ in the Superior Court, which proceeding may be brought by any person within 45 days after the action sought to be voided has been made public; provided, however, that a public body may take corrective or remedial action by acting de novo at a public meeting held in conformity with this act and other applicable law regarding any action which may otherwise be voidable pursuant to this section; and provided further that any action for which advance published notice of at least 48 hours is provided as required by law shall not be voidable solely for failure to conform with any notice required in this act.
b. Any party, including any member of the public, may institute a proceeding in lieu of prerogative writ in the Superior Court to challenge any action taken by a public body on the grounds that such action is void for the reasons stated in subsection a. of this section, and if the court shall find that the action was taken at a meeting which does not conform to the provisions of this act, the court shall declare such action void.