After trying to trade but before a Pokemon was first generated

[yitzhakbg]

Anki 2.1.20 (47a1bf8b) Python 3.8.0 Qt 5.14.1 PyQt 5.14.1
Platform: Windows 10
Flags: frz=True ao=True sv=1

Add-ons, last update check: 2020-03-02 21:46:06
First off, let me commend you on this excellent plugin. Keep up the good work.

Caught exception:
Traceback (most recent call last):
File "C:\Users\yitzh\AppData\Roaming\Anki2\addons21\633922407_init_.py", line 934, in tradeFunction
tradeData = json.load(open("_trades.json"))
FileNotFoundError: [Errno 2] No such file or directory: '_trades.json'