Warning: require(./vendor/autoload.php): Failed to open stream: No such file or directory in C:\xampp\htdocs\bot\src\Api.php on line 3

Fatal error: Uncaught Error: Failed opening required './vendor/autoload.php' (include_path='.;C:\xampp\php\PEAR;C:\xampp\htdocs') in C:\xampp\htdocs\bot\src\Api.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bot\src\Api.php on line 3