Unknown transaction: related invoice not found #[****] This is whats in the log. I don understand why its not working... can someone please help...! Thanks!
Are you trying to use paypal in front amember or regular setup(where user makes his payment from aMember's signup page)? Also that message in the log could be for another IPN which is not related to any payment inside aMember. For example if you have IPN url configured in your paypal profile, paypal send IPN about any action which you do in your paypal account, (mass payment, send payment, etc...)