I honestly think they did it on purpose. They got to Nasdaq and uplisted - took enough money from shareholders to buy Nora - now dumping and doing whatever they can to get back to the otc - where they can live in the sewers with little regulation and a ton of dilution.
They got their Nora off shareholders now dumping the shareholders and back to the otc where they can operate under shady circumstances a lot easier than on the Nasdaq.