Migrade to php8.1.8 will not working

[lvsan]

Hi,

May i know does this class will able to be use if i have migrate the php from 5 to php 8.1 ?
So far i check there is error display under my page.

Error: Class "lajax\languagepicker\widgets\LanguagePicker" not found

Can anyone able to assists me or advice?

Thanks.

Low