Fatal error: Uncaught Swift_RfcComplianceException: Address in mailbox given [] does not comply with RFC 2822, 3.6.2. in /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php:355 Stack trace: #0 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php(272): Swift_Mime_Headers_MailboxHeader->assertValidAddress('') #1 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php(117): Swift_Mime_Headers_MailboxHeader->normalizeMailboxes(Array) #2 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php(74): Swift_Mime_Headers_MailboxHeader->setNameAddresses(Array) #3 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleHeaderFactory.php(61): Swift_Mime_Headers_MailboxHeader->setFieldBodyModel(Array) #4 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleHeaderSet.php(71): Swift_Mime_SimpleHeaderFactory->createMailboxHeader('To', Array) #5 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/SimpleMessage.php(323): Swift_Mime_SimpleHeaderSet->addMailboxHeader('To', Array) #6 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/modules/Contact.class.php(302): Swift_Mime_SimpleMessage->setTo(Array) #7 /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/templates/form.execute.tpl.php(23): Contact::sendMail(Object(Swift_Mailer), '\xE3\x80\x90T-COT\xE3\x80\x91\xE8\xB3\x87\xE6...', '\xE6\xA7\x98\n\nT-COT \xE8\xB3\x87\xE6...', NULL, NULL, 'info@tokuco.ac....', 'T-COT \xE5\xBE\xB3\xE5\xB3\xB6\xE5\xB7\xA5...') #8 /home/hsu0052/public_html/wordpress/wp-includes/template-loader.php(106): include('/home/hsu0052/p...') #9 /home/hsu0052/public_html/wordpress/wp-blog-header.php(19): require_once('/home/hsu0052/p...') #10 /home/hsu0052/public_html/index.php(17): require('/home/hsu0052/p...') #11 {main} thrown in /home/hsu0052/public_html/wordpress/wp-content/themes/nic-lab-2021/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mime/Headers/MailboxHeader.php on line 355