TypeError when database is not fully initialized

Node crashes with Cannot read properties of undefined (reading 'retrieve') when executing findDDO command without a valid DB_URL configuration.

`error: CORE: ❌ Error: 'Cannot read properties of undefined (reading 'retrieve')' 
was caught while getting DDO info for id: did:op:bb83b4b7f86b9523523be931a763aaa3a20dc9d3d46c96feb1940e86fde278ac`