Warning: require(D:\www\www157\stereo/wp-includes/capabilities.php): failed to open stream: No such file or directory in D:\www\www157\stereo\wp-settings.php on line 181

Fatal error: require(): Failed opening required 'D:\www\www157\stereo/wp-includes/capabilities.php' (include_path='.;C:\Program Files\PHP\v7.3\pear') in D:\www\www157\stereo\wp-settings.php on line 181

Fatal error: Uncaught Error: Call to a member function set() on null in D:\www\www157\stereo\wp-includes\l10n.php:857
Stack trace:
#0 D:\www\www157\stereo\wp-includes\l10n.php(960): load_textdomain('default', 'D:\\www\\www157\\s...', 'de_DE')
#1 D:\www\www157\stereo\wp-includes\class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler->handle()
#3 {main}
  thrown in D:\www\www157\stereo\wp-includes\l10n.php on line 857