Empty admin.php after 1.4.8 -> 1.4.10 upgrade

[WSM_TechMedia]

Problem:

• I upgraded from 1.4.8. to 1.4.10
• The admin.php is delivered completely empty (no content at all)
• HTTP status code for the admin.php is 200
  
• the frontend works fine though

What did I try to fix the issue?

• I tried to rebuild the master data via the install tool (at least 5 times) -> no effect
• I tried to disable the memcache (see config below) and tried to rebuild the master data -> no effect
• I tried to access a sub page on admin.php -> empty page as well.
• I tried to activate display_errors -> no errors get displayed.

Further information

• webserver is nginx, database is Maria DB
  
• Here is my config (dummy values for the actual config values):

• ini_set('display_errors', true);
  $config['db']['host'] = '1.2.3.4';
  $config['db']['port'] = '1234';
  $config['db']['username'] = 'dbuser';
  $config['db']['password'] = 'password';
  $config['db']['dbname'] = 'prefix_xenforum';
  
  $config['cache']['enabled'] = true;
  $config['cache']['cacheSessions'] = true;
  $config['cache']['frontend'] = 'Core';
  //$config['cache']['frontendOptions']['automatic_serialization'] = true;
  $config['cache']['frontendOptions']['cache_id_prefix'] = 'xf_prefix_';
  /*
  $config['cache']['backend'] = 'Memcached';
  $config['cache']['backendOptions'] = array(
      'compression' => true,
      'servers' => array(
          array(
              // your memcached server IP /address
              'host' => '1.2.3.4',
  
              // memcached port
              'port' => 11211,
          ),
                  array(
                          // your memcached server IP /address
                          'host' => '1.2.3.4',
  
                          // memcached port
                          'port' => 11211,
                  )
      )
  );
  */
  $config['superAdmins'] = '1234';
  $config['debug'] = true;
  $config['cookie']['domain'] = '.mydomain.xyz';

Questions

• Any idea how to fix this issue?
• What's the cause of this?

 

[Paul B]

If you submit a ticket with ACP and FTP access we can take a look.