Certified GKH Gardening Expert
Unfortunately, your photo did not come through. I will be unable to assess any damage.
In the meantime, here are some articles that will explain some of the more common diseases:
https://www.gardeningknowhow.com/ornamental/trees/oak/oak-wilt-disease.htm
https://www.gardeningknowhow.com/plant-problems/disease/alcoholic-flux-in-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/oak/xylella-oak-leaf-scorch.htm
https://www.gardeningknowhow.com/ornamental/trees/oak/sudden-oak-tree-death.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/bacterial-leaf-scorch-disease.htm