Albums Dissappeared from Lightroom CC

Between Lightroom CC Sessions all my albums have disappeared. I was using Lightroom CC

on Mac running High Sierra. Looking at the threads it looks like this has happened before to a few people without any resolution by Adobe - has there been any progress or do you have any recommendation on how to recover over 83000 album photos. 

When I look at all photos it says there are 83355, but none are visible.

I use Lightroom CC becuase they are supposed to be backed up in the cloud - will be mightly pissed off if the photos and all my edits have dissapeared!!

Any assistance would be appreciated.

LR System Info was:

Lightroom version: 3.4 X64 [ 20200804-0825-1542eef ] (Aug 4 2020)
NGL Version: 1.17.0.35
WF Version: 2.4 developer
Operating system: macOS
OS Version: 10.13 [6]
Application architecture: x64
Computer model: MacBookPro8,3 / Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
Logical processor count: 8
Processor speed: 2.2 GHz
Built-in memory: 16,384.0 MB
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 754.6 MB (4.6%)
Virtual memory used by Lightroom: 1,640.8 MB
Memory cache size: 0.9 MB
Internal Camera Raw version: 12.4 [ 556 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX
Camera Raw virtual memory: 0MB / 8191MB (0%)
Camera Raw real memory: 0MB / 16384MB (0%)
Displays: 1) 1920x1200

Graphics Processor Info: Unknown
Graphics Processor Detail: loaded: No, supported: No, compute: No, init: I1_Failed, hard: fail_no_gpu2, soft: not_checked, wl: No, bl: No
OS Media Capability: true

Application Folder: /Applications/Adobe Lightroom CC
Settings Folder: /Users/mac/Library/Application Support/Adobe/Lightroom CC
Library Folder: /Users/mac/Pictures/Lightroom Library.lrlibrary