Fatal error: Uncaught Error: Interface "Web3\Formatters\IFormatter" not found in C:\xampp\htdocs\medivault\vendor\sc0vu\web3.php\src\Formatters\OptionalQuantityFormatter.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\medivault\vendor\sc0vu\web3.php\src\Formatters\OptionalQuantityFormatter.php on line 20