Fatal error: Uncaught Error: Class "Anthropic\Core\Exceptions\AnthropicException" not found in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Core\Exceptions\RetryableException.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\singular_law\vendor\anthropic-ai\sdk\src\Core\Exceptions\RetryableException.php on line 15