Domains Stuck at "To be deleted"

Hi everyone, Our domains that expired in February and March are stuck in "to be deleted" state, they never get deleted. On manual deletion or renewal the output is: Error: ObjectStatusProhibitsOperation Manual run of '/usr/sbin/fred-admin --object_regular_procedure' executes but doesn't give any output. Zones are still being generated with such 'to be deleted' domains excluded. The timezone is set to UTC in postregsql.conf Enum_parameters are as follows: expiration_notify_period -30 expiration_dns_protection_period 30 expiration_letter_warning_period 34 validation_notify1_period -30 validation_notify2_period -15 regular_day_procedure_period 0 object_registration_protection_period 6 handle_registration_protection_period 0 regular_day_outzone_procedure_period 14 outzone_unguarded_email_warning_period 25 enum_validation_continuation_window 14 regular_day_procedure_zone Africa/Johannesburg expiration_registration_protection_period 61 What could be the cause of this? Regards. Moeketsi