GE Side by Side refrigerator leaking from door handle

Hello

My GE side by side refrigerator is leaking from the freezer door handle below the water and ice dispenser.

This has only happened once I turned the water on to the refrigerator after being in storage for about 12 months.

It stopped leaking when I turned the water off to the refrigerator.

Any suggestions on where to start to fix this problem

Thank you