ORA-25109: standby lock name space has illegal character '[string]'
Cause: An invalid lock name space was specified for the standby database. The lock name space for the standby database can only contain A-Z, 0-9, ''_'', ''#'', ''$'', ''.'' and ''@'' characters.
Action: Change initialization parameter _STANDBY_LOCK_NAME_SPACE to a valid character string.
Error Type: ORA