This means that the link you clicked, or the URL you typed into your browser, didn't work for some reason. Here are some possible reasons why:
You may have typed the survey link incorrectly.
The link you received in your email may have been broken across two lines.
What you can do:
Verify that the entire link to the survey appears in your browser's address/location field.
If the link you received in your email was broken across two lines, copy the first and second parts of the URL link, and place them together into your browser's address/location field as a single line.