Sorry about the trouble with Lightroom while trying to edit the images in Photoshop. We're here to help.
Which version of Lightroom (Cloud-Based), Photoshop, and operating system are you using? Is it happening with all images or a particular image?
Did you try any troubleshooting steps so far?
Try re-installing the application if not tried yet, but before doing it, check if all the assets are correctly synced or not HERE.
Let us know how it goes.