Warning: require_once(alias.map.php): Failed to open stream: No such file or directory in /home/.sites/104/site784/web/.cm4all/include/BengProxy.php on line 3

Fatal error: Uncaught Error: Failed opening required 'alias.map.php' (include_path='.:/usr/lib/php://share/php/php:/usr/share/pear:/usr/share/php') in /home/.sites/104/site784/web/.cm4all/include/BengProxy.php:3
Stack trace:
#0 /home/.sites/104/site784/web/.cm4all/include/base.php(4): require_once()
#1 /home/.sites/104/site784/web/Kontakt/index.php(2): require_once('/home/.sites/10...')
#2 {main}
  thrown in /home/.sites/104/site784/web/.cm4all/include/BengProxy.php on line 3