Control on door has flasing lights, water and ice has stopped working

I found the following solution ONLINE about a year ago, so I'm copying and pasting what worked very well for me. You'll have to use your "gray matter", but it WILL solve your problem:
On this model if you push the water dispenser in for over 2 minutes without letting go, the control board locks out and you have to re-program the control board. Lets see if we can re-program the control board. Read these instructions before you start and the fridge must be plugged in to reboot. Press and hold the door alarm keypad Press and hold the freezer temp down pad Release the door alarm pad Wait 3 seconds then release the freezer down keypad The control should display PE to indicate you are in the programming mode. Entry is confirmed by pressing the freezer temp down pad once more. The control should display the current code. Your code is on the serial # XXXXX. Should be 0302. NOTE! If the correct code is not displayed the you will have to change the code. If the correct code is displayed , simply open the refrigerator door and the control will reboot. If the correct code is not displayed do the following: Press the refrigerator temperature up pad or the refrigerator down temp pad to change the digit value. The decimal point indicates the selected digit. Press the freezer temperature up pad to select the next digit. Once the desired program code is displayed press and hold the freezer temp down pad until the program code begins to flash. Then just wait and everything should reset. You have 3 minutes to do this reprogram or the unit will shut you out and you will need to start over! Now if that doesn't get your control board working again---the relay control board on the back is just shorted and unfortunately will need to be ordered and replaced to fix the issue. Please Don't Forget the deposit you placed to ask the question is not used to compensate me until you rate my service! Please Remember that when you are asked to give a rating, you are rating My Service and not this website itself or the problem of your appliance.
The code onb my refrigerator shows 1515, and also on the inside of refrigerator it shows code 1515. Should I do something different?
nope, that's good. So once you have entered the code then you just need to wait for the code to be accepted. Once the desired Program CODE is entered, press and hold the Freezer Temperature Down Keypad until the Program CODE begins flashing indicating it has been saved.
I pray you will succeed with this also since it save me a service call fee and Lord only knows what else !

First I would check your water filter. They are supposed to be changed every 6 months. That fixes most of these issues. If that doesn't solve the problem, make sure you didn't recently move the fridge and create a kink in the water line. If that was not the issue, then try placing your fingers in the ice tray, if it feels warm, it could be your ice maker heater control went bad. Need to replace your ice maker. However, if its both the water dispenser and ice... its not this! Finally, your freezer will stop making ice if you leave your fridge doors open all the time like my father in law. If the fridge is not up to temp, ie: cold enough, it will not make ice! These are some of the things to look for!

This appears to be the door switch is either bad or disconnected and has triggered an alarm mode to the display. If the unit is cooling ok then you should remove and check the switch with a meter.