Thank you Mr @Rahimdad and @luwaimn
for helping me to get out of stack
I had a lot of fun. new experience and skills is getting added to my desert driving hobby
I was disappointed that I couldn’t climb the hill.
I have had engaged my hand brake on the top of the hill and I forgot to release it
I think that’s why I couldn’t climb the hill
I noticed the hand brake in the inflating area.