I had the same issue on a Windows 2019 virtual server while performing routine windows updates. The instructions were spot on.
I ran:
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
Then I ran:
dism.exe /online /cleanup-image /restorehealth
sfc /scannow
All finished with errors. The update was reapplied with no errors.