Just because an image comes up in a search for free images doesn’t make it free to use.
Please find a suitable image which has a free license or is in the public domain, or purchase a license for the image at a legitimate site and we will be able to help you with it once you have a vector of both the flag:
available at:
and the post below it, or at the launch elements link:
https://launch.carbide3d.com/elements/category/US_Flags
EDIT:
this has moved to:
https://elements.carbide3d.com/category/us_state_flags/
and of the clipart which you wish to use.