...or why you have lost it.
Sometimes happens that, for any reason or by mistake, SAP Solution Manager system is removed from LMDB. It implies that the stages System Preparation and Basic Configuration will be lost.
As SAP Note 2020955 says:
"There are no means of bringing back the setup, you have to re-run all the steps in System Preparation and Basic Configuration."
Graphically,
Before:
After:
It is not the best thing that can happens to you but, it could be useful sometimes (thinking in a new SM system not very well configured and you want to start a fresh installation)