我升级了Postgres，现在它不显示任何表格了。有人可以帮忙吗？
这是错误：
Error: Upgrading postgresql data from 11 to 12 failed!
==> Removing empty postgresql initdb database...
==> Moving postgresql data back from /usr/local/var/postgres.old to /usr/local/var/postgres...
Error: Failure while executing; `/usr/local/opt/postgresql/bin/pg_upgrade -r -b /usr/local/Cellar/postgresql@11/11.6/bin -B /usr/local/opt/postgresql/bin -d /usr/local/var/postgres.old -D /usr/local/var/postgres -j 4` exited with 1.