Author: Joyce Zhou
In the APPS page, an app that was once available has disappeared all of a sudden.
Your workflow may be expired. Please check the workflow status in ADMINISTRATOR. The icon of expired workflow turns gray in the right navigation section.
To activate the workflow, you can simply modify the End Date field in CONFIGURATION tab, and save you changes. Once the End Date is updated to be something that ends in the future, your workflow APP should become active.