I have a fresh install of trader.
I was using it efficiently when it runs with python 2.x

Bot tries to use all available balance, one command opens orders multiple times until balance is insufficient.

It never cancels buy order is not filled. When it buys never show message, and never tries to sell.
Only trying to re-buy. It may be due to rounding profits or prices.

What can I do to run this bot properly again?