Digital dash problem gas gauge wont work

Instrument clusters in many vehicle makes can develop issues due to fatigued internal components. Many have ribbon cables that delaminate and separate connections on the internal cluster board. I would first check the condition of the power source/fuse to see what voltage is coming through feeding to the cluster. You might luck out and find a loose connection to the cluster itself and re-seat the connector. Some clusters have external mini light bulbs on back of the cluster that can cause issue as well. That would require pulling the cluster. Good Luck!