Q.Is There Anything We Can To Save A Queen Palm?
The tree has lost bark and is oozing sap that is attracting birds and bees. It still seems to have healthy growth of palms
Certified GKH Gardening Expert
It looks like a boring insect may have invaded it, which could cause sap. Queen palms also are susceptible to pink rot, so I've given you a link to info about that disease. Ganoderma butt rot is a disease that causes decay of the trunk.
Queen palms need supplemental water applied, so be sure it is getting plenty of water. Palms also are notorious for nutritional deficiencies. Once a plant is stressed, insects and disease can move in.
I suggest calling your local extension agent who can recommend if any new treatments are available.
http://ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/giantpalmborer.html
https://www.gardeningknowhow.com/houseplants/queen-palms/how-to-grow-queen-palm-outdoors.htm
http://ipm.ucanr.edu/PMG/PESTNOTES/pn74148.html