To run normally

First, apply these two issues. #1 , #2
In addition to this, change the definitions of ssid and password from define.

#define WIFI_SSID (config.h) -> const char* ssid = "ssid" (main.cpp)
#define WIFI_PASSWORD (config.h) -> const char* password = "password" (main.cpp)

Review issues #1 and #2 first, since this issue says they must be applied before the requested change. Then inspect the SSID and password definitions in config.h and main.cpp; done means those definitions use the requested declarations and the project runs normally.

Written by the indexing model from the issue text.