How to Reconnect Galleries in Lightroom
1. Right-mouse click on the Pic-Time Plug-in (located under Publish Services), and click Edit Settings...
2. Under the Pic-Time Sync section, click Advanced Tools.
3. If you're attempting to recover a single gallery, you can input the Project ID and click Recover Structure and Photos. If the recovery file exists and the originals are already in the catalog, it will restore the gallery fully. For multiple galleries, you can click Recover From Library Photos. Then click OK.
4. Once the gallery is recovered in Lightroom, you will need to Publish the images for them to update on the site.