Not possible to create rman script

I'm trying to transfer old scripts into a new rman catalog but it is not possible even though it is syntactically correct as it was used for years in the old one.

RMAN> create or replace global script offline_weekly

2> {

3> shutdown immediate;

startup mount;

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE DEFAULT DEVICE TYPE TO 'SBT_TAPE';

CONFIGURE DEVICE TYPE SBT_TAPE PARALLELISM 2;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%d_%F';

backup device type sbt format '%d_full_offline_%s_%U_%t' filesperset 1 tag '%TAG' database;

alter database open;

crosscheck backup of database completed before 'trunc (sysdate-35)';