Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events

Subsequent Events	6 Months Ended
Oct. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	NOTE 11 — SUBSEQUENT EVENTS In November and December 2020, the Company issued an aggregate of 100,000 shares of common stock for the exercise of stock warrants and received proceeds of $700,000. On November 13, 2020, the Company issued an aggregate of 1,068,940 shares of the Company’s common stock in exchange for the conversion of 106,894 shares of Series H Preferred Stock. On November 16, 2020, the Company issued an aggregate of 188 shares of restricted common stock for director services rendered from November 1 to November 9, 2020. The shares of restricted common stock vested immediately on the date of grant. On November 17, 2020, the Company issued an aggregate of 921,666 shares of the Company’s common stock in exchange for the conversion of 921,666 shares of Series I Preferred Stock.

Subsequent Events

6 Months Ended

Oct. 31, 2020

NOTE 11 — SUBSEQUENT EVENTS

In November and December 2020, the Company issued an aggregate of 100,000 shares of common stock for the exercise of stock warrants and received proceeds of $700,000.

On November 13, 2020, the Company issued an aggregate of 1,068,940 shares of the Company’s common stock in exchange for the conversion of 106,894 shares of Series H Preferred Stock.

On November 16, 2020, the Company issued an aggregate of 188 shares of restricted common stock for director services rendered from November 1 to November 9, 2020. The shares of restricted common stock vested immediately on the date of grant.

On November 17, 2020, the Company issued an aggregate of 921,666 shares of the Company’s common stock in exchange for the conversion of 921,666 shares of Series I Preferred Stock.