Update fail 1.5.2 - 1.6.1

[anarchotaoist]

Bug description

Ran the inbuilt update in version 1.5.2
After install Trinity gives a notification that it will re-open.
It does not.
Manually re-opening give the following message attached

Version

Which version of Trinity are you running? (Please provide the full version, you can find it in Settings > About Trinity).

• Version:
  1.5.2 - 1.6.1 appimage

Hardware specification

What hardware are you using?

Operating System: Kubuntu 20.10
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.14.2
Kernel Version: 5.8.0-48-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-6700 CPU @ 3.40GHz
Memory: 31.2 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 530

Node Settings (delete if not relevant)

What are your node settings? Are you using automatic node management?

• Node settings:

Steps To reproduce the bug

Explain how the maintainer can reproduce the bug.

1. Update trinity
2. Reopen trinity
3. Error message
4. Manually download appimage
5. Same error message

Expected behaviour

Trinity updates and presents current wallet

Actual behaviour

Failed update

Errors

Paste any relevant errors that you see. These could include error/crash logs or screenshots. Please ensure that these files do not contain any personal information.
In attached image. I could not cut and paste the error.

[anarchotaoist]

How can I recover my Iota??