Any time I click on black and white or outline for an image to engrave I get an emgu.cv.cvinvoke error. Any idea how to fix the error?

I just built my laseraxe laser engraving machine. I have installed the driver CH341SER.INF and software CNCC 2019 and the CNCC software will not connect. I have also tried to install the software CNCC V2.53 and also can't connect to the laseraxe machine. I received the message "COM4Did not make the right response. the connection has been disconnected." What am I doing wrong? Shouldn't it work? Does this sound like I have a defective control board?

hi. i m using laseraxe cncc - tried to install the newest software after using 2.53C version - then i found F version and basiclly it still not responding good. I m changing in a CODE section - CurFeed as manuals say to do - and its not affecting speed.any ideas? i was playing with DefFeed also and power of burning. greetings