Error while updating Database from revision 1.3.3. to 1.3.4. update-davical-database - could not create unique index "role_member_pk"

When i was trying to upgrade the Davical version I got the following error message when using the update-davical-database - script:

`root@xxxxxxx:/usr/share/davical/dba# /usr/share/davical/dba/update-davical-database

The database is version 12.0 currently at revision 1.3.3.

Applying patch 1.3.4.sql ... failed!

psql:/usr/share/davical/dba/patches/1.3.4.sql:59: ERROR: could not create unique index "role_member_pk" DETAIL: Key (role_no, user_no)=(1, 1) is duplicated.

psql:/usr/share/davical/dba/patches/1.3.4.sql:61: ERROR: current transaction is aborted, commands ignored until end of transaction block

psql:/usr/share/davical/dba/patches/1.3.4.sql:64: ERROR: current transaction is aborted, commands ignored until end of transaction block

==> No further patches will be attempted!

No patches were applied.

Supported locales updated.

Updated view: dav_principal.sql applied.

CalDAV functions updated.

RRULE functions updated.

Database permissions updated.`

Any ideas? Thx in advance...

My System is an Ubuntu Linux 22.04.2, PostgreSQL version 14.7, PHP Version 8.1.2-1ubuntu2.11, Apache version 2.4.52