this.openalpr.scan is not a function / undefined

[mrSeoD]

I am using Ionic 6 and when I run the scan function, I get the following error:

"TypeError: this.openalpr.scan is not a function. (In 'this.openalpr.scan(ce,this.openAlprOptions)', 'this.openalpr.scan' is undefined)"
Is this problem coming up because openalpr doesn't support Ionic versions above 4? Or is there something else causing the issue?

Thanks for the help in advance!