I have attached the screenshots of my code and the error. Can anyone tell me where I am going wrong?

Screenshot-2018-8-30 super-resolution.png2144×1014 140 KB
 
Screenshot-2018-8-30 super-resolution(1).png2144×1014 285 KB
 
Screenshot-2018-8-30 super-resolution(2).png2144×1014 124 KB
 
Screenshot-2018-8-30 super-resolution(3).png2144×1014 147 KB
 
Screenshot-2018-8-30 super-resolution(4).png2144×1014 170 KB
 
Screenshot-2018-8-30 super-resolution(5).png2144×1014 146 KB