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0: /usr/local/psa/admin/plib/cmd_set_sys_t.php3:109 psaerror(string "timemng failed:")
1: /usr/local/psa/admin/htdocs/server/sys_time.php3:132 get_timezones_list()
If you have an RPM-based system, make sure that "tzdata" RPM is installed and the /usr/share/zoneinfo/zone.tab file exists (try to run "locate zone.tab").
If it doesn't exist you have to reinstall tzdata RPM or copy this file from another server with the same OS installed.