It was silence for six months (October 1, 2020 - April 1, 2021). The 13G was not filed by the company, but was filed by Oasis Capital, not 12 Retech. So, for that six month period of time, the company was completely silent. It provided no public disclosure on its status of numerous late filings and apparently a number of key events that required 8K filings.
There better not be hundreds of back and forth letters with the new auditors prior to their engagement. If that is the case, it is most likely that those communications would have tainted the audit.