WordPress database error: [Column 'quote_phone' cannot be null]INSERT INTO `quote` (`quote_name`, `quote_phone`, `quote_email`, `quote_message`, `quote_fileupload`, `quote_reference_number`, `created_at`, `status`) VALUES (' ', NULL, NULL, NULL, '', 'ZOO0203RQ60', '02-03-2021 07:03', '0')