ESP8266 connects to EByte LoRa e220 UART devices LLCC68 with some errors

First of all, I would like to thank the library owner for creating this lora library to bring great convenience to us lora users. I encountered some difficult problems in the process of using the library and would like to get some help from the author. 1、When I run the configuration example esp8266_e22_setconfiguration, I read out some errors from the serial port, the errors are in the appendix. 2、I also tried to run the esp8266_e22_04_sendfixedtransmission example and found a similar error, see the appendix for the error result. 3、Some questions about the esp8266_e22_setconfiguration example program，See Appendix for questions. 4、Some questions about the esp8266_e22_04_sendfixedtransmission example program，See Appendix for questions.