VBCS Build Executor and Builds and Pipelines removed/deleted/disappeared

Hi,

For some reason, our build executor is gone, and all associated builds and pipelines.

What would cause it to be removed and how do we recover it?

The last successful build I did was last week and all our setup was fine, but for some reason our executor that we've been using is no longer there.

From the Project Home, I can see the 'Recent Activities' of the last build that ran.

When selecting the build I can see the configuration is still there.

But when I select builds, it asks to set up an executor.

When Viewing the executor, it is no longer there.