Hi, I am sorry to hear that.
This very well could need a new cock control board.
But try one thing first because sometimes they simply glitch electronically due to the processor inside.
Please turn off power at the mains for 30 full minutes.
Then flip it back on. Let me know if you can set your clock now?
If that works Great!
If not then Yes you will need a Technician to replace that part for you.
Or you could do that with my help, there is no soldering required to replace this clock.
It all simply plugs into the wiring harness.
In any case, I will stick with you until this is complete.
Please rate my service kindly.
Also it is the only way I am credited for my time and expertise with you.
Once you rate, I will be notified and will add your question to my priority list so you can reach me anytime until this problem is solved.
Then you can reach me by simply replying to this message anytime.
Thank you and have a great Sunday!