"we couldnt get a bought price for BTC-ETH, Please manually override it using config.js
what is this?"
You have ETH balance but bot does not have record what was the buying price (you either deposited ETH, bought it maually or using your bot on another device without proper history import).
Check wiki to see how to override bougth_price.
go to
https://github.com/GuntharDeNiro/BTCT/wiki/Configuring-Gunbot#pairs and check picture in Pairs section ... (instead of DOUBLE_UP use BOUGHT_PRICE and set the correct price)