Rebuild Mautic while preserving contacts, data?

Your software
My Mautic version is:v2.16.0
My PHP version is: 7.2.27

Your problem
My problem is:
Pretty much ready to abandon Mautic - giving one last try to rebuild while preserving contacts and activity and data?
Is that possible? Rebuild and preserve all data, contact, history, etc?

the latest issue with this install is when viewing a segment and attempting to sort by Last Active, the screen toggles between Last Active (which I want) but when clicking that column again, Last Active and ID column disappear and the only way to bring it back is to click on Stage.
These errors are showing in the log:

Steps I have tried to fix the problem: