Hi,
Thank you for posting in Microsoft Q&A forum.
1,You can try below steps:
Uninstall the Client from the server, and uninstall MP
Uninstall IIS , BITS and Remote differential Compression
restart the server
Install IIS (Caution: Install all required components of IIS for SCCM, don not proceed with default options).
Install MP again from sites
restart SCCM console
Similar thread for your reference:
FATAL MSI ERROR - BGBISAPI.MSI COULD NOT BE INSTALLED.
2,What do the BgbSetup.log and bgbisapimsi.log say?
Similar thread for your reference:
Fix Fatal MSI Error bgbisapi msi could not be installed
Thanks for your time. Have a nice day!
Best regards,
Simon
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