In case any special assessment shall for any reason be set aside as erroneous by any court, such court shall ascertain the amount of benefit which accrued to the property on which the erroneous assessment was made by reason of the work or improvement for which such erroneous assessment was levied, and insert a finding thereof in its judgment, and the board of directors shall thereupon relevy such assessment in accordance with the finding of the court, and such assessment shall thereupon become a lien upon the property assessed and shall be collected as other assessments.