Don't know how you got 200m with a new game without a contract, but I have no issues with this Mod. You do need to edit the Version # in the descriptor NUT File. Once edited, it should look like this:

min_game_version<-Version(0, 12, 0);
max_game_version<-Version(0, 12, 99);

Then test the Mod with a new game and buy 500 or 1000 Helium 3 (The Most Expensive Item). Then sell it, and you'll see the profit.

Selling is tricky, and Delivery Cost, Relations, Shuttle Cost & Weight Cost all effect the final tally. If you're selling cheap items, then don't expect a profit. Produce High-end items, and sell those.

Helpful Threads:

https://psteamcommunity.yuanyoumao.com/app/1638300/discussions/0/3759977515082974631/
https://psteamcommunity.yuanyoumao.com/app/1638300/discussions/0/3759977946661607407/

Bug? Started a game, had the 30mil, but couldn't sell anything. Nothing provided a profit even during a crisis making the item unbuyable.

Deactivated the mod, new game now starts with 200 million and can sell stuff again.