Retirement tax questions

 what do I do if i have lost the original 1099g Massachusetts pua compensation in a fire how to request replacement for year 2020?? Should I call the IRS or is there either a mailed version or a faster online printable version. Also how much does it cost? I was told to call the IRS at 1-800-829-1040. I hope I do not miss the deadline for the tax credits I believe I only have till December 31st I'm really worried.

     Thank you and happy holidays,

           Sincerely Samantha Paige