Hello Shaheen,

The source of your problem is the end point on the curve has a positive Z coordinate.

You need to add another point that has either a zero Z coordinate or even a negative Z coordinate. This positive Z coordinate is the reason you are getting a sliver of material and a failure to mesh. Add a point (115, 0, 0) to this end and a point (84.7, 0, 0) at the other end.

Regards,

Peter