Drupal 8 : Warning: include_once(/…/core/modules/file/templates/file.field.inc): failed to open stream

I have multiples warnings, for example :

Warning: include_once(): Failed opening ‘/var/www/website/web/core/modules/file/templates/file.field.inc’ for inclusion (include_path=’/var/www/website/web/vendor/pear/archive_tar:/var/www/website/web/vendor/pear/console_getopt:/var/www/website/web/vendor/pear/pear-core-minimal/src:/var/www/website/web/vendor/pear/pear_exception:.:/usr/share/php’) in include_once() (line 484 of core/lib/Drupal/Core/Theme/Registry.php).

Warning: include_once(/var/www/website/web/core/modules/file/templates/file.field.inc): failed to open stream: No such file or directory in include_once() (line 484 of core/lib/Drupal/Core/Theme/Registry.php).

The file exist at /var/www/website/web/core/modules/file/file.field.inc but not /var/www/website/web/core/modules/file/templates/file.field.inc. Where does this “templates” come from ? Where is this path set with “templates” ?

Configuration

 Drupal version   : 8.7.2  Site URI         : http://default  DB driver        : mysql  DB hostname      : mariadb  DB port          :  DB username      : wordpress  DB name          : wordpress  Database         : Connected  Drupal bootstrap : Successful  Default theme    : ubl  Admin theme      : seven  PHP binary       : /usr/bin/php7.1  PHP config       : /etc/php/7.1/cli/php.ini  PHP OS           : Linux  Drush script     : /usr/local/bin/drush  Drush version    : 9.6.2  Drush temp       : /tmp  Drush configs    : /var/www/website/web/vendor/drush/drush/drush.yml  Install profile  : standard  Drupal root      : /var/www/website/web  Site path        : sites/default  Files, Public    : sites/default/files  Files, Temp      : /tmp