I submitted a ticket 8 hours ago but didn't get a response back during business hours. Apparently I should have put it in Troubleshooting instead of Support. We integrate our subscriptions, with recurring payments, with Pay Pal. We are seeing some strange things happening in the last day or so with all transactions showing up in the Error/Debugg Log as having IPN validation error messages that state Paypal claims it is not valid IPN transaction. There have been dozens of aMember transactions with Pay Pal in a row starting in the middle of July 7 (yesterday) that came back with the same error message: "paypal_r ERROR: IPN validation error: Paypal claims it is not-valid IPN transaction: [8 ]" Does anyone have any idea what this might be? I am reaching out to Pay Pal right now and will update this thread with any info they provide. Right now, new orders with Pay Pal are not registering with aMember and new recurring payments made by Pay Pal are not showing up in aMember, either. It's a mess.