Fatal error: Uncaught TypeError: Return value of Slim\Environment::offsetGet() must be an instance of Slim\mixed, string returned in /home/equiposy/public_html/portal/vendor/slim/slim/Slim/Environment.php:197
Stack trace:
#0 /home/equiposy/public_html/portal/vendor/slim/slim/Slim/Middleware/MethodOverride.php(83): Slim\Environment->offsetGet('REQUEST_METHOD')
#1 /home/equiposy/public_html/portal/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#2 /home/equiposy/public_html/portal/vendor/slim/slim/Slim/Slim.php(1304): Slim\Middleware\PrettyExceptions->call()
#3 /home/equiposy/public_html/portal/site/index.php(157): Slim\Slim->run()
#4 {main}
  thrown in /home/equiposy/public_html/portal/vendor/slim/slim/Slim/Environment.php on line 197

Fatal error: Uncaught ErrorException: Cannot modify header information - headers already sent in /home/equiposy/public_html/portal/site/index.php:39
Stack trace:
#0 [internal function]: Slim\Slim::handleErrors(2, 'Cannot modify h...', '/home/equiposy/...', 39, Array)
#1 /home/equiposy/public_html/portal/site/index.php(39): header_remove('Cache-Control')
#2 [internal function]: {closure}()
#3 {main}
  thrown in /home/equiposy/public_html/portal/site/index.php on line 39