PHP Fatal error: Uncaught TypeError: Return value of Tuupola\\Middleware\\HttpBasicAuthentication::authenticator()

[rodrigobrando]

Hello friends!
Am I facing an unprecedented error, can you help me?

PHP Fatal error: Uncaught TypeError: Return value of Tuupola\\Middleware\\HttpBasicAuthentication::authenticator() must be an instance of Tuupola\\Middleware\\void, none returned in /var/www/dashboard.mobi/plataforma/api/vendor/tuupola/slim-basic-auth/src/HttpBasicAuthentication.php:228\nStack trace:\n#0 [internal function]: Tuupola\\Middleware\\HttpBasicAuthentication->authenticator(Object(Tuupola\\Middleware\\HttpBasicAuthentication\\PdoAuthenticator))\n#1 /var/www/dashboard.mobi/plataforma/api/vendor/tuupola/slim-basic-auth/src/HttpBasicAuthentication.php(171): call_user_func(Array, Object(Tuupola\\Middleware\\HttpBasicAuthentication\\PdoAuthenticator))\n#2 /var/www/dashboard.mobi/plataforma/api/vendor/tuupola/slim-basic-auth/src/HttpBasicAuthentication.php(55): uupola\\Middleware\\HttpBasicAuthentication->hydrate(Array)\n#3 /var/www/dashboard.mobi/plataforma/api/src/middleware.php(19): Tuupola\\Middleware\\HttpBasicAuthentication->__construct(Array)\n#4 /var/www/dashboard.mobi/plataforma/api/public/index.php(30): require('/var/www/dashbo...') in /var/www/dashboard.mobi/plataforma/api/vendor/tuupola/slim-basic-auth/src/HttpBasicAuthentication.php on line 228

[rodrigobrando]

Guys, I apologize for opening this Issue. The error was due to the PHP version of the server.
I've been hitting it for 30 hours!

[tuupola]

Did composer install library version which was not compatible with server PHP version? If yes then I might have problem with my composer.json file.

[rodrigobrando]

Not the error was human, he hears a php downgrade after installation.