getting this issue

[yasserdzx]

gdax 526 - undefined
gdax 526 - undefined
gdax 526 - undefined
gdax 526 - undefined
gdax 526 - undefined
/Users/yasserben/Desktop/whaless/lib/trades/binance.js:40
if(trade_worth > min_worth[currency]) {
^

TypeError: Cannot read properties of undefined (reading 'BTC')
at Object.binance (/Users/yasserben/Desktop/whaless/lib/trades/binance.js:40:29)
at WebSocket. (/Users/yasserben/Desktop/whaless/bin/www:47:13)
at WebSocket.emit (node:events:527:28)
at Receiver.receiverOnMessage (/Users/yasserben/Desktop/whaless/node_modules/ws/lib/websocket.js:800:20)
at Receiver.emit (node:events:527:28)
at Receiver.dataMessage (/Users/yasserben/Desktop/whaless/node_modules/ws/lib/receiver.js:436:14)
at /Users/yasserben/Desktop/whaless/node_modules/ws/lib/receiver.js:393:23
at /Users/yasserben/Desktop/whaless/node_modules/ws/lib/permessage-deflate.js:306:9
at /Users/yasserben/Desktop/whaless/node_modules/ws/lib/permessage-deflate.js:385:7
at afterWrite (node:internal/streams/writable:497:5)