The application could not run because of the following error:
#0 [internal function]: Slim\Slim::handleErrors(2, 'Cannot modify h...', '/home2/presid42...', 83, Array) #1 /home2/presid42/public_html/vendor/bergasoftware/php-classes/src/Model/User.php(83): header('Location: /admi...') #2 /home2/presid42/public_html/admin.php(7): Bergasoftware\Model\User::verifyLogin() #3 [internal function]: {closure}() #4 /home2/presid42/public_html/vendor/slim/slim/Slim/Router.php(200): call_user_func_array(Object(Closure), Array) #5 /home2/presid42/public_html/vendor/slim/slim/Slim/Slim.php(1210): Slim\Router->dispatch(Object(Slim\Route)) #6 /home2/presid42/public_html/vendor/slim/slim/Slim/Middleware/Flash.php(86): Slim\Slim->call() #7 /home2/presid42/public_html/vendor/slim/slim/Slim/Middleware/MethodOverride.php(94): Slim\Middleware\Flash->call() #8 /home2/presid42/public_html/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call() #9 /home2/presid42/public_html/vendor/slim/slim/Slim/Slim.php(1159): Slim\Middleware\PrettyExceptions->call() #10 /home2/presid42/public_html/index.php(33): Slim\Slim->run() #11 {main}