Hello,
Usually, you can update the plugin in Appearance > Install plugins without deactivating, deinstallation. Just press “update”
Recently WP Bakery has released 6.4.1 This version would be included in our nearest theme update and you will be able to update it as usually in Appearance > Install plugins.
Meanwhile you can stay at the current version or you can upload the recent version in this forum profile. In this case you will need the following:
1. Make the full backup of your site.
2. Deactivate and delete the current plugin version.
3. Upload the new version from your portfolio on this forum.
4. Upload, install and activate.
Best Regarards