Hello. This is just a permissions issue. Go to DT Register -> Permissions. First click "Sync Groups". Second, set permissions as desired. Note that Super Users should rarely have the first box "Edit Own Items Only" checked... as that will limit a user to only having access to manage items (events, locations, etc) that he is the named owner of. Re-save permissions.
Now, also make sure that your user account is NOT assigned to multiple user groups in Joomla. If you are a super user, for example, you should only be assigned to that one group. Other assignments will likely mess up your desired permissions in DT Register. Thanks!
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