Glass break wires - is there a common issue or area to look?

[Mymercedes220]

Hi,
I am trying to sort an issue with the alarm going off on my car 2011 c class.
The diagnostic shows this.
Anyone know if there is somewhere specific to look ?
It just randomly goes off.
(The siren is showing because it was disconnected)

 

[KennyN]

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K