I see the stock is still trading, so the problem is with OTCMarkets, not the stock. I haven't been watching today.
BTW, I see my broker doesn't allow shorting of stocks under $3.00.
I just looked over the trades and the only thing I see resembling a 'big block' is a sell for 100k and a buy for 100k, and considering that works out to $11,640, that's not very big in the scheme of things.
IHub does not show every trade. I had a trade execute today and the only thing showing on IHUB anywhere near that time at the correct price is a trade over 10 times the size of mine.
In other words, those 'big blocks' could be aggregates of smaller blocks, and odd lots. I suppose people do buy odd lots of penny stocks, though I can't figure out why.