@Saqlain_Haider so if I have understood well:
1) You had a crash
2) Wifi and Bt are working
Now we have to check if the autopilot is running, is the orange LED blinking and the blue led off?
This leds to Erle-Brain not beeing able to read RC.
To be sure that Erle-Brain is able to read the RC, (once the previous question's answer is: yes autopilot is running), open a GCS (Mission Planner, APM Planner, QGroundControl station,... the one you prefer) and connect to Erle-Brain. For doing so:
1) Connect to Erle-Brain'2 WiFi hostpot.
2) Set GCS's port as
10.0.0.2:6000, meaning port 6000 and ip 10.0.0.2
3) Go to Radio Calibration and see if when moving sticks radio bars are moving.
You should see bars moving like this:
This is how you'll know if Erle-Brain is reading radio values.