Hallo, sobald ich versuche ein Bild in den header upzuloaden kommt folgende Fehlermeldung:
Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /home/.sites/121/site558/web/wp-includes/media.php on line 1006
Warning: imageantialias() expects parameter 1 to be resource, boolean given in /home/.sites/121/site558/web/wp-admin/includes/image.php on line 63
Warning: imagecopyresampled() expects parameter 1 to be resource, boolean given in /home/.sites/121/site558/web/wp-admin/includes/image.php on line 65
Warning: imagejpeg() expects parameter 1 to be resource, boolean given in /home/.sites/121/site558/web/wp-admin/includes/image.php on line 74
Was kann ich tun?