Organizer won't open PSE14

We had a power failure, and I was using the application at the time. Following which, Organizer would not open - no error message just fails to open. The Editor starts just fine. I've had a look at similar issues but haven't managed to find any quite like mine thus far.

I'm using an iMAC (Late 2015) macOS 10.13.3 (High Sierra)

Here's what I have tried so far: (in order) -

Stopped and Restarted machine gracefully - no improvement

Used time machine to bring back the Organizer app from a time prior to the power failure

Reinstalled PSE over the top - restarted - no improvement

Uninstalled both - restarted the machine then did a clean install - STILL won't open.

I'm not averse to upgrading to 2018 but I'm concerned that the new install won't work either.

As well as that, I like the integration of the Nik plugin in my current version and as far as can tell, that won't work in 2018.

Is there anything else I can do?

Thanks in advance

PS I've kept a copy of the Apple report log thing but its very long and I can't see any way to attach a file so here's the first part only

Process:               Adobe Elements 14 Organizer [1005]

Path:                  /Applications/Adobe Elements 14 Organizer.app/Contents/MacOS/Adobe Elements 14 Organizer

Identifier:            com.adobe.ElementsOrganizer14

Version:               14.0 [20150827.m.80115] (14.0.0.0)

Code Type:             X86-64 (Native)

Parent Process:        ??? [1]

Responsible:           Adobe Elements 14 Organizer [1005]

User ID:               501

Date/Time:             2018-03-24 15:05:39.000 +1030

OS Version:            Mac OS X 10.13.3 (17D102)

Report Version:        12

Anonymous UUID:        AE43C88B-83F9-6F6F-37C6-92D0C8322BF2

Time Awake Since Boot: 4400 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread