Angular 17 not showing content when using variable inside

I'm using angular 17 with angular material and when I wanted to show simple string variable it disappear the whole content html:

<h2 mat-dialog-title>Ticket</h2>

<mat-dialog-content>
My ticket: {{ tekst }}
</mat-dialog-content>

<mat-dialog-actions>
<button mat-button mat-dialog-close>Close</button>
</mat-dialog-actions>


component

@Component({
selector: 'app-ticket-statistic',
standalone: true,
imports: [MatDialogTitle, MatDialogContent, MatButtonModule, CommonModule, MatDialogActions, MatDialogClose, MatDialogModule],
templateUrl: './ticket-statistic.component.html',
styleUrls: ['./ticket-statistic.component.sass']
})

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