Ok, so let's analyze your walk statements:
Simba Code:
1: RadialWalkTolerance(12345,159,186,74,5,5,15);
2: RadialWalkTolerance(12345,136,153,74,5,5,15);
Simba Code:
RadialWalkTolerance(color,startDeg,endDeg,radius,xOffset,yOffset,tolerance: integer);//probably not the exact var names, but that's what they are
So you have a color of 12345. While that could be legitimate, I feel like that's not the color of whatever you're trying to walk to and instead you just copy pasted this from a tutorial. It is only looking for said color in a small portion of the bottom of the minimap (origin is at north, 90 degrees at east, 180 at south, etc).
Perhaps the area you're searching through is roughly the right direction you want to go, but I think you need to fix that color to match wherever you're trying to go (use the colour picker tool in simba).