Found incorrect output in pg_lsclusters

*postgres(at)PC:/root$ uname -aLinux PC 4.9.0-3-amd64 #1 SMP Debian
4.9.30-2+deb9u5 (2017-09-19) x86_64 GNU/Linuxpostgres(at)PC:/root$ PostgreSQL
9.6.8 on x86_64-pc-linux-gnu, compiled by gcc (Debian 6.3.0-18) 6.3.0
20170516, 64-bit(1 row)postgres(at)PC:/root$ pg_lsclusters Ver Cluster Port
Status Owner Data directory Log file9.6 asterisk 5433 down
postgres /postgresql/data/asterisk
/var/log/postgresql/postgresql-9.6-asterisk.log9.6 db1 5432 online
postgres /postgresql/data/db1
/var/log/postgresql/postgresql-9(dot)6-db1(dot)logpostgres(at)PC:/root$ pg_ctlcluster
9.6 asterisk statuscould not change directory to "/root": Отказано в
доступеpg_ctl: server is running (PID:
32275)/usr/lib/postgresql/9.6/bin/postgres "-D" "/postgresql/data/asterisk"
"-c" "config_file=/etc/postgresql/9.6/asterisk/postgresql.conf"*

But...Client program works well with current DB, but pg_lsclusters outputs
that cluster is down.
Another cluster works well :)
Thanks for your work!