Are you still using an old version Omniscope Classic / 2.9?
Or are you publishing IOK files to a potentially old version of the Omniscope free Viewer?
If so, and you are using the Map view, the base map will stop working on 1 Nov 2020. You and your clients should upgrade, or you should reconfigure your maps, to avoid any loss of service.
Our MapBox account data tells us that there is still activity (primarily from Australia) for the deprecated maps that are about to be turned off.
See advisory and guide.
If you are only using Evo, you can disregard this.