How do I save file in the database using custom form in drupal 8?

I created a custom form to get resume file from user and save it to their profile. My custom form looks like this, $form[‘resume’] = array( ‘#type’ => ‘managed_file’, ‘#title’ => t(‘Upload Resume’), ‘#upload_location’ => ‘public://resume/’, ‘#default_value’ => ”, ‘#description’ => t(‘upload resume’), ‘#states’ => array( ‘visible’ => array( ‘:input[name=”file_type”]’ => array(‘value’ => t(‘upload resume’)),…

404 on all Category Pages

Have upgraded from 1.8.1.0 to 2.3.3. But every single category page is now 404’d. Have truncated a url_rewrite and catalog_url_rewrite_product_category, but no luck. Have gotten rid of the other root and clear:cached and re-indexed. Other symptoms: All of the form fields in the categories are blank. Would very much appreciate any help, thank you! –Just…