Fatal error: Uncaught SendGrid\Mail\TypeException: "$email" must be an instance of SendGrid\Mail\From or a valid email address in /home/customer/www/midnightsuntanning.ca/public_html/wp-content/themes/midnightsun/sendgrid-php/lib/helper/Assert.php:33 Stack trace: #0 /home/customer/www/midnightsuntanning.ca/public_html/wp-content/themes/midnightsun/sendgrid-php/lib/helper/Assert.php(48): SendGrid\Helper\Assert::string(NULL, 'email', '"$email" must b...') #1 /home/customer/www/midnightsuntanning.ca/public_html/wp-content/themes/midnightsun/sendgrid-php/lib/mail/Mail.php(942): SendGrid\Helper\Assert::email(NULL, 'email', '"$email" must b...') #2 /home/customer/www/midnightsuntanning.ca/public_html/wp-content/themes/midnightsun/template-signup.php(35): SendGrid\Mail\Mail->setFrom(NULL) #3 /home/customer/www/midnightsuntanning.ca/public_html/wp-includes/template-loader.php(106): include('/home/customer/...') #4 /home/customer/www/midnightsuntanning.ca/public_html/wp-blog-header.php(19): require_once('/home/customer/...') #5 /h in /home/customer/www/midnightsuntanning.ca/public_html/wp-content/themes/midnightsun/sendgrid-php/lib/helper/Assert.php on line 33