Hi,
“Enable stock management” is enabled in the system.
Current version of plugins (with latest version) as follows:
Event Tickets – 4.4.2 ( to 4.4.5)
Event Ticket Plus – 4.4.2 (to 4.4.4)
The Events Calendar – 4.4.2 (to 4.4.5)
Please confirm above plugin upgrades, so that we can perform these upgrades soon.
Thanks,