Amend return due to duplicated 1099R distribution

I was reviewing my printed return and somehow noticed the entry for my PA distribution for PSERS, which is taxable income, shows up on the form twice. I started to amend the return to remove the 2nd entry so I don't pay taxes on it,  and now I"m stuck at the state return.

 

It says:

"Tell us about your original deductions

We need to verify the number we transferred from your original return and make sure this is correct. Edit any incorrect amounts below that might have been changed since you filed your return." 

 
Above the text box it says ("Original Deductions from Schedule O.")  I don't have a Schedule O, and I don't understand what they mean by "Original deductions." I tookd standard deduction. Is that what they mean?  Student loan interest is the only other deduction.
 
Help. Where on my return do they want me to find my "Original" deduction amount? I can't find the answer anywhere online, results are not even relevant. 
 
I have forms:
1040
Schedule 1
Schedule D
8995
PA-40
Schedule B
Another PA-40 Gross Comp Worksheet, (which is where I foudn the PSERS entry twice under Compensation from Federal Forms 1099R)
 
Please, somebody know the answer!
THANK YOU