I've never had any problems with this, but since yesterday, I have received various emails from people who say they get the 'your link has expired' error message upon the first try of downloading.
In one case, I could get away with refreshing the download link, but in the other cases I've had to manually send them the pdf.
What is causing this?
I know one lady tried to download it from her phone, and I know one other lady forwarded the email to her husband's computer to download it from there. I am not sure of what actions the other people took that could have messed the download link up :)
Is there something wrong with the server?