X264 does not work on sony vegas pro (14)

when i set the color space to the same as input with these settings https://imgur.com/qnSvI8e it gives me this message https://i.imgur.com/BCjsp35.png but when i use different color space it works fine and when i use the same color space on my laptop it works and im using the same version on k lite mega pack and i dont know whats the problem can someone help me

You get that error because the input colorspace is either not supported by x264 or not compatible with the selected encoding profile. You should select "Convert to YUV 4:2:0".