Eps 8266 and r307s(red,black,yellow,green, violet,white )
- whether to connect power supply of esp to vv or 3.3v
- which colour where to connect?
And why the error like that
Are you able to send through SKU’s to the product?
From the output it looks like the baud rate is set incorrectly
Without more information about the module its hard to debug your project.