Upload functionality does not work

Windows 10
Loca IIS
aspx

Hello friends,
I’m trying to implement the ‘upload’ functionality but when I click on the corresponding button, nothing happens, that is, the file is not ‘transported’ to the folder.
I followed the tutorial from this link: Uploading Single File To Your Server, remembering that my version of Wappler is the latest. I also checked this link: Uploading Single File for a possible solution. Unfortunately it didn’t work for me.
Finally, when I click the button I get this message:

Any help will be appreciated!
Thanks.