Error 1109 url not valid

Hi! I have an error when clicking the "Insert" button, I get this:

These are my blocks and layout:

I think you are trying to change spacing to %20.
Make sure that there is a space in the marked area of the below picture.
If you don't type anything in that part, each letter will be inserted like a picture of the question.

The Web component has a block to handle this, used mostly for the back part of the URL around the variable data.

UriEncode( text )

Encodes the given text value so that it can be used in a URL.