( ! ) Fatal error: Interface 'Swift_Signers_HeaderSigner' not found in C:\wamp64\www\Transporteur\vendor\swiftmailer\swiftmailer\lib\classes\Swift\Signers\DKIMSigner.php on line 16
Call Stack
#TimeMemoryFunctionLocation
10.0052408512{main}( )...\DKIMSigner.php:0