Title, Oop. just got home and booted this up. Latest version of factorio 2.1 & all mods.

https://imgur.com/a/b2SQi12

Hey I'm currently at work, if you can paste the error that'd be amazing (imgur not allowed in UK and don't have a vpn on phone) if not don't worry I'll fix it when I get home in the morning sorry for the delay.

Hoping to help, also maraxis had an issue before this one due to a changed file reference, not sure if that's resolved before this error cropped up

Failed to load mods:
ERROR loading scripts.final.basic-bootstrap-audit:
...eage-rebalance__/scripts/final/basic-bootstrap-audit.lua:22: attempt to index local 'recipe' (a nil value)stack traceback:
[C]: in function 'error'
angelbob-spaceage-rebalance/data-final-fixes.lua:11: in function 'safe_require'
angelbob-spaceage-rebalance/data-final-fixes.lua:157: in main chunk

Here is the last part of my log as well. I think it's the same error as OP

18.984 Script @angelbob-spaceage-rebalance/scripts/final/low-gravity-recipe-audit.lua:59: [AB LOW GRAVITY KEEP] recipe=ab-low-gravity-water-boiling product=steam reason=space-platform-self-sufficiency
18.984 Script @angelbob-spaceage-rebalance/scripts/final/low-gravity-recipe-audit.lua:82: [AB LOW GRAVITY RECIPE AUDIT] checked=9 kept_custom=4 removed_basic_shortcuts=5 blockers=none
18.985 Script @angelbob-spaceage-rebalance/data-final-fixes.lua:10: ERROR loading scripts.final.basic-bootstrap-audit: ...eage-rebalance__/scripts/final/basic-bootstrap-audit.lua:22: attempt to index local 'recipe' (a nil value)
18.985 Error ModManager.cpp:1767: Failed to load mod "angelbob-spaceage-rebalance": ERROR loading scripts.final.basic-bootstrap-audit: ...eage-rebalance__/scripts/final/basic-bootstrap-audit.lua:22: attempt to index local 'recipe' (a nil value)
stack traceback:
[C]: in function 'error'
angelbob-spaceage-rebalance/data-final-fixes.lua:11: in function 'safe_require'
angelbob-spaceage-rebalance/data-final-fixes.lua:153: in main chunk

Also having this issue on 1.2.8.

Not having it on 1.2.7 however

Odd, not been able to recreate this error at all, I have patched the above errors but not able to check if there is any other startup errors

Fixed for me :)

Fixed for me :)

Perfect, thank you

Op here. Update fixed it :)