There's a downloads option on the PFS Guide product page. You can try downloading it from there as a workaround. Paizo is closed today for 4th July celebrations, so there might be a delay for customer support to look into the issue.
Hello Harak,
It looks like you successfully downloaded the Pathfinder Society Roleplaying Guild Guide yesterday. We have verified that the correct file is in the download. Were you able to get it downloaded?