Hi, Shelly
You can log in to the server as the root user and run the following command to change the maximum number of login users:
Pay attention to the following two parameters: MAX_SESS_CNT; LOGIN_NAME
su postgres -c "/home/postgres/bin/psql -p 6000 -d smu -c \"update tbl_smu_user_info set MAX_SESS_CNT=10 where LOGIN_NAME='Admin';\""