Driver's side door lock problem...picture included

[Bizall]

I've searched around with no luck. Many other door lock issues, but none that I could find like this. The problem I have the is the thin bar with the hook end keeps coming off the piece that it threads through. I put it on, test the door and lock/unlock and it keeps popping back off. What is suppose to keep it on? Is there something else missing/broken that I am not seeing? Thanks in advance for any help.

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[shogun]

I assume the small plastic grommets are broken and disappeared, see the detail drawings here.
Bodywork