Acrobat DC-MacOS 10.11.3 Crashing EVERY time, fix?

This morning, Acrobat DC began crashing every time it is opened. Most of the time before a PDF is opened. Occasionally a file will open for a split second then crash. It will crash opening via any method

Yesterday evening at 5:15pm, it had been working fine. I use it every day.

I have updated all CC apps

No other updates have been made to the system

I have shut down and rebooted

I have signed in and out of CC

I have cleared Acrobat preferences

I have tried to open Acrobat DC via Applications > Adobe Acrobat DC > Adobe Acrobat.app, via Creative Cloud > Apps > Acrobat DC > Open

I have followed the "apps crashing immediately after launch" Adobe Creative Cloud applications close immediately after launch

Mac 10.11.13

iMac 27" Mid-2011

3.4GHz Core i7

16GB 1333MHz DDR3

AMD Radeon HD 6970M 2048MB

This behavior has brought work to a standstill on this computer.

Has anyone overcome this? I have found numerous other reports in the forums but not resolution.