Hi @OmarGutierrez-8688,
1, I did some research on your question. Please make sure the following is configured then install SCCM again:
• The account used for the installation and the computer account of SCCM Server need to be members of the local admins group on SQL Server and need also sysadmin rights in SQL.
• Please make sure you configure the SQL services to run under a domain user account rather than as local system or network service. Running SQL under a domain user follows MS best practices.
• Delete the registry key which generated during installation of SCCM(HKLM\SOFTWARE\Microsoft\SMS) if it already exists.
2, Please check Srvboot.log on the SQL server, if there is any information. Besides, this is very similar to a thread below for your reference:
SCCM 2012 Installation - Error creating SQL Server certificate (microsoft.com)
Looking forward to your reply.