I guess check parameter standby_file_management parameter in init/spfile of standby instance.

When you set the STANDBY_FILE_MANAGEMENT initialization parameter to AUTO, use of the following SQL statements is not allowed:
· ALTER DATABASE RENAME
· ALTER DATABASE ADD/DROP LOGFILE
· ALTER DATABASE ADD/DROP STANDBY LOGFILE MEMBER
· ALTER DATABASE CREATE DATAFILE AS

SO, if it is AUTO, change it MANUAL and then retry the command.

Thanks