Fatal error: Uncaught Error: Interface "Pleo\Merkle\ITreeNode" not found in /home/pay/public_html/vendor/bitcoin/pleonasm/merkle-tree/src/Pleo/Merkle/OneChildDuplicateNode.php:12 Stack trace: #0 {main} thrown in /home/pay/public_html/vendor/bitcoin/pleonasm/merkle-tree/src/Pleo/Merkle/OneChildDuplicateNode.php on line 12