Invalid AdWords gclid

The Ad Destination URL https://www.democracylab.org from the AdWords account DemocracyLab Ad Campaign:7710824476 has accrued a significant number of clicks but a lower-than-expected number of corresponding sessions because the page is dropping or altering the gclid parameter inserted by Google. Check the web server's redirect logic or its use of a URL rewrite engine to ensure the gclid parameter is preserved.

Google Tag Assistant Recordings can help you ensure that your website is properly accepting the gclid parameter.

https://support.google.com/analytics/answer/2938246?hl=en

https://trello.com/c/eYNYrW8b