Hi Erdem,
You can try to run the query below ->
UPDATE [dbo].[tblKartrisVersions] SET [V_QuantityWarnLevel] = 1
This will set all your versions' Quantity Warn Level to 1. Anything with a quantity warn level greater than 0 is regarded stock tracking enabled.
Be reminded though that you also need to set 'frontend.orders.allowpurchaseoutofstock' config setting to 'n' to disable the 'add to basket' button for out-of-stock items.