Capital Loss Carryover Worksheet: TY22 CLCO Wksht Row B AMT must be Entered

Hi, so far I've almost finished my tax but I have to make one correction in order to finish my tax I have no clue what to enter and what document I should take a look at. 

The following part is where I'm having trouble with.

TY21 -> TY22 conversion AMT capital loss carryover adjustment smart worksheet
Is this return impacted by inaccurate TY21->TY22 conversion? (see help)
Yes (o)
No
Value from 2021 Schedule D for AMT, line 7
Value from 2021 Schedule D for AMT, line 15
Value from 2021 Schedule D for AMT, line 21
Value from 2021 Form 6251, line 4, alternative minimum taxable income
2021 Schedule D for AMT, line 7, per 2022 Capital Loss Carryover Wksht
2021 Schedule D for AMT, line 15, per 2022 Capital Loss Carryover Wksht ___________
 
The last part '2021 Schedule D for AMT, line 15, per 2022 Capital Loss Carryover Wksht ___________' is where I have no clue what to put in. I have the old tax return pdf files from the Turbo Tax account but I don't know what tax year I have to look into. Is it 2022 ? or 2021? and which line from Schedule D section should I look? 
I also don't know what AMT means... 
Do I just put the number that is written on line 15 from TY 2022 Schedule D part 2 section?