The PMP Exam changed on May 26st 2018 and if you used the "old" PrepCast to prepare for the new exam, you may fail the exam. It is a PMI requirement that we no longer allow customers to access any training based on the outdated PMBOK Guide. This article explains the current version of the PMP Exam:
Thank you for understanding that we cannot make any exceptions to this PMI imposed rule. Nobody is allowed to download the "old" PrepCast after May 26, 2018.