ORA-46362: Could not translate variable ORACLE_BASE

if you get this when trying to start a database using srvctl:

PRCR-1079 : Failed to start resource ora.xxxxx.db
ORA-46362: Could not translate variable ORACLE_BASE.
ORA-46362: Could not translate variable ORACLE_BASE.

CRS-5017: The resource action "ora.xxxxx.db start" encountered the following error: 
ORA-46362: Could not translate variable ORACLE_BASE.
ORA-46362: Could not translate variable ORACLE_BASE.
. For details refer to "(:CLSN00107:)" in "xxxxx.trc".

CRS-2674: Start of 'ora.xxxxxxx.db' on 'xxxxxx' failed
ORA-46362: Could not translate variable ORACLE_BASE.
ORA-46362: Could not translate variable ORACLE_BASE.

modify the database resource:

srvctl setenv database -d [DBNAME] -env ORACLE_BASE=$ORACLE_BASE

… and try again