(1) If the assets of a domestic mutual insurer on the cash premium plan fall below the amount of its liabilities, plus the amount of any surplus required by this code for the kinds of insurance authorized to be transacted, the commissioner shall at once ascertain the amount of the deficiency and serve notice upon the insurer to cure the deficiency within ninety days after such service of notice.

(2) If the deficiency is not made good in cash or in assets eligible under this code for the investment of the insurer's funds, and proof thereof filed with the commissioner within such ninety-day period, the insurer shall be deemed insolvent and shall be proceeded against as authorized by this code.

(3) If the deficiency is not made good the insurer shall not issue or deliver any policy after the expiration of such ninety-day period. Any officer or director who violates or knowingly permits the violating of this provision shall be subject to a fine of from fifty dollars to one thousand dollars for each violation.