I think you're over thinking it.
Account / internet glitches happen.
It's likely a problem with paypal not erin's site given the description you gave.
Contact PayPaly support... or pay directly and relax.
Erin and your reading will be there when you get it figured out.
If you're "attracting" problems because you're worried about the money...
either don't get the reading ... or tell your self the money is already gone. Come to terms with that. Then try again. ... but I'd contact PayPal support first.