Some, but not all of the curve end points touch

I am quite new to Rhino and I am trying to loft a surface together but I get this message “Some, but not all of the curve end points touch.” I have done my best to check manually to try and figure out which is the problematic curve end points but I have been unsuccessful. Any advice here would help. Thank you.
itertation 2 sushi.3dm (52.8 KB)

CrvStart and CrvEnd can be used to mark the ends of curves, or turn on control points or edit points

To learn how to improve your models read:

http://docs.mcneel.com/rhino/6/usersguide/en-us/index.htm#html/ch-05_accuratemodeling.htm%3FTocPath%3D_____5

http://docs.mcneel.com/rhino/6/training-level1/en-us/Default.htm#topics/04_precision%20modeling.htm%3FTocPath%3D_____8

To learn Rhino go through:

http://docs.mcneel.com/rhino/6/usersguide/en-us/index.htm

https://docs.mcneel.com/rhino/6/training-level1/en-us/

http://docs.mcneel.com/rhino/6/training-level1/en-us/

Also see the videos, etc available at Rhino - Learn to use Rhino