Fatal error: Uncaught Error: Interface "Http\Message\MultipartStream\MimetypeHelper" not found in /home/sourceex/public_html/pm/vendor/php-http/multipart-stream-builder/src/ApacheMimetypeHelper.php:12
Stack trace:
#0 {main}
thrown in /home/sourceex/public_html/pm/vendor/php-http/multipart-stream-builder/src/ApacheMimetypeHelper.php on line 12