Paypal payments time frames are not determined by the Auction management software you use. Something isn't set correctly in your email notifications. Or you are not leaving a copy of the email on your server so email can be retrieved.
First, the error you asked about the other day. Did you ever get that email error resolved? I want to be sure these two incidents are not related.
Second, are you absolutely certain that all the Paypal payments are being sent to the same email address. Meaning you still do not have that old AOL email address out there on some Listings you had earlier on before switching.
Third, just to be sure you are seeing the "My eBay " correctly, log into your Paypal account and double check to see if 31 buyers have really paid since Sunday morning which is when the eBay time flips to a new week.
Let me know what you find.