Bug on the user's timeline

When a guest browses the timeline of a user, an unnecessary option to delete the event is enabled.

If you click on "Delete" and confirm the action, an error will appear because we do not have permissions to do so.
If we are logged in as a user and browse the timeline of another user, then this error does not exist - there is no "Delete" function.

Please, Robert, from the phpfox team support for tips on how to fix this bug myself.

I can not wait to correct this bug in a future update, because I have introduced a lot of code changes by programmers.

Thank you for your help.