I am getting below error while installing APEX
SQL> @apxrtins.sql SYSAUX SYSAUX TEMP /i/
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
Performing installation in multitenant container database in the background.
The installation progress is spooled into apxrtins_cdb*.log files.
Please wait...
catcon: ALL catcon-related output will be written to [/dump00/apex/apxrtins_cdb_catcon_29028.lst]
catcon: See [/dump00/apex/apxrtins_cdb*.log] files for output generated by scripts
catcon: See [/dump00/apex/apxrtins_cdb_*.lst] files for spool files, if any
catconInit: database is not open on the default instance (||)
Unexpected error encountered in catconInit; exiting
Installation completed. Log files for each container can be found in: