Blank in browser, help

hello i have a problem i have a white page

in my opinion i have entered everything correctly and don’t know any more maybe i can help myself i would be happy i apologized for my bad english

I use ubunto 16.04 sever

so they turn it off

<?php class object {} $CFG = new object(); if ($_SERVER['SERVER_NAME'] == 'localhost') { $base_url = "http://localhost/bit_live/"; $CFG->api_url = $base_url.'api/htdocs/api.php'; $CFG->auth_login_url = $base_url.'auth/htdocs/login.php'; $CFG->auth_verify_token_url = $base_url.'auth/htdocs/verify_token.php'; } else { $base_url = "http://web.de/"; $CFG->api_url = 'http://api.web.de/api/htdocs/api.php'; $CFG->auth_login_url = 'http://auth.web.de/auth/htdocs/login.php'; $CFG->auth_verify_token_url = 'http://auth.web.de/auth/htdocs/verify$ } ?>