This partitioner doesn't have information about the default type of the partition tables on your architecture.  Please send an e-mail message to debian-boot@lists.debian.org with information.
Amesnulfu-a n yiḥricen ulac ɣur-s talɣut ɣef wanaw amezwer n tfelwiyin n uḥric deg tsegda-inek·inem. Ttxil-k·m azen izen s yimayl ɣer debian-boot@lists.debian.org s telɣut.