Ng-Multiselect-dropdown - Error: Cannot read properties of null (reading 'firstCreatePass')

I am trying to use the npm package in angular Ng-Multiselect-Dropdown, I have it installed and all the code in places however when I try to access the page it does not load and the following error is showing:



See code below:

HTML:

<ng-multiselect-dropdown [placeholder]="'custom placeholder'"
[settings]="dropdownSettings"
[data]="dropdownList"
[(ngModel)]="selectedItems"
(onSelect)="onItemSelect($event)"
(onSelectAll)="onSelectAll($event)">
</ng-multiselect-dropdown>


Typescript:

AppsModule:

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