>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3573095. --> Reported by: [makertimswis](https://www.drupal.org/user/3673259) Related to !15 >>> <p>We recieve the error<br> <code>Call to a member function getDisplayName() on null (Document: entity:node/###:nl)</code><br> And looking at the trace it seems like the display name is caused by the "owner" of a document</p> <p>But a core functionallity is hard-removing users, so it could be a null-pointer reference.<br> Also, user is not a required field, so not filled users is also a valid flow</p> <p>Could we null-check the function-call&gt;?</p>