Use the following typing is the solution ..
adprep /forestprep and adprep /domainprep from CD installation of windows 2019.
"The Directory Service cannot perform the requested operation because a domain rename operation is in progress."
regarding the error above you can launch the following command rendom /end to stop the rename process
Yes I have problem with Management Point ,
see https://docs.microsoft.com/en-us/answers/questions/753232/sccm-management-point-fatal-msi-error-bgbisapimsi.html
// Jonas