>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3160575. --> Reported by: [guypaddock](https://www.drupal.org/user/156932) >>> <p>On our sites, clicking "Reset file list" followed by "Load all files" results in the following fatal error during batch processing:</p> <blockquote><p> An AJAX HTTP error occurred. HTTP Result Code: 500 Debugging information follows. Path: /batch?id=569&amp;op=do StatusText: error ResponseText: TypeError: Argument 1 passed to _auditfiles_used_not_referenced_batch_display_get_files() must be of the type array, string given, called in /code/includes/batch.inc on line 284 in _auditfiles_used_not_referenced_batch_display_get_files() (line 289 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc). </p></blockquote> <!--break--><p>This is followed by the following PHP notices on the subsequent report page:</p> <blockquote><p> Warning: Illegal string offset 'field_audio_block_files' in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Notice: Array to string conversion in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Warning: Illegal string offset 'field_article_media' in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Notice: Array to string conversion in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Warning: Illegal string offset 'field_tag_photo' in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Notice: Array to string conversion in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Warning: Illegal string offset 'field_media_file' in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Notice: Array to string conversion in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Warning: Illegal string offset 'field_event_image' in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc).</p> <p>Notice: Array to string conversion in _auditfiles_used_not_referenced_batch_display_get_operations() (line 264 of /code/sites/all/modules/auditfiles/auditfiles.usednotreferenced.inc). </p></blockquote> <p>For context:</p> <ul> <li><code>field_audio_block_files</code>, <code>field_article_media</code>, and <code>field_media_file</code> are core "File" fields.</li> <li><code>field_tag_photo</code> and <code>field_event_image</code> are core "Image" fields.</li> </ul>