What do you mean by "making a sweep in a part not a problem, selection manager works well. but in sketch its not work"?
Selection Manager isn't even in Sketches...

As for your 2nd question, you can't delete an endpoint of a line or arc.
You can only delete sketch points.

There also isn't a thing as "make a colinear for all sketch".
Understanding what colinear means should be enough explanation.

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What is the final shape you want to get?
An educated guess is that you should edit the profile's sketch and make the centre of the rectangle on the path (using either a coincident or pierce relation).

Thanks for replying khedr, I meant sketch means , As i shown in pic above. after giving exit sketch.

for my problem I completed that I draw a rect in centre of my path and get a sweep. I dont know many in solidowrks. Im a beginner. now my question is, In previous I just draw a one simple rect without fillet, away from centre of my path, it sweep it, but having fillet, it doesnt. why? I try to understand how solidworks works.

It is best practice to make the profile and the path, 2 separate sketches. Sketch your path first, and then create a plane normal to the first section of your sketch. Draw the profile on that plane. Exit the sketch, and then sweep that profile along your path.

It doesn't matter if the profile and/or path have fillets. The only time you may have problem is if the profile is too large for the path, and it runs into itself at the turns

After struggling with this, and shaking my head at some of the "answers" (guy says you should understand what collinear is, but can't even spell it), there's something not mentioned above.

Both the Profile and the Circular Path cannot be construction lines. I thought for sure the path would need to be, but I've somehow never came across this before.

Hopefully this helps someone else who gets a similar error message to that of the OP.