Cakewalk rollback didn't work

[gmp]

I was having problems with 2021.01, so I decided to use the Cakewalk rollback. it didn't work. I got this error message while trying to open CbB, which never opened

 

cakewalk.exe system error

code execution can't be found

ttslame.dll not found

reinstalling program may fix

 

I assume it means to reinstall Lame and not reinstall 2020.11, which I was trying to rollback to. The setup files for 2020.11 are never saved, so I can't reinstall that version. if it's referring to Lame. I don't use the old Cakewalk MP3 converter from about a decade ago, I use a custom version of Lame that's integrated into CbB when I export files.