Of course “correcting our errors” might involve replacing the seemingly ramshackle “standard model” with something more mathematically elegant. (However the “standard model” keeps chugging along withstanding all challenges!) This “correction” might involve a whole theory with explanations “new particles\forces” for dark energy & matter.
I disagree. I think there is no missing matter or missing energy. What’s missing is in the math assumptions and calculations. The fact that they continue to meet their own requirements is nothing more than circular logic - of course they do, they cannot do anything but what the assumptions foretell. But the assumptions - like the Hubble constant - are simply wrong. Yet, everything - in the math - depends on such “constants” being correct.
When the math is finally corrected - maybe 100 years from now - it will be seen there is neither dark matter nor dark energy.
Decades before I heard about Arp and his unusual galaxies, I asked a visiting astronomy lecturer about the Whirlpool galaxy’s obvious attachment to the smaller galaxy behind it whose red shift says it can’t possibly be there.
His faced reddened and he told me they weren’t going to throw away their models based on a few discrepancies. And that was that.