Fatal error: Uncaught Error: Interface "BitWasp\Buffertools\BufferInterface" not found in /home/pay/public_html/vendor/bitcoin/bitwasp/buffertools/src/Buffertools/Buffer.php:9 Stack trace: #0 {main} thrown in /home/pay/public_html/vendor/bitcoin/bitwasp/buffertools/src/Buffertools/Buffer.php on line 9