Select2 show result but can’t select

I am building a CRM project with Laravel 8. I want to use select2 but there is something wrong. I can’t select after first select. It looks like this and I can’t select. HTML:

How to show multiple select options when user select multiple options and when unselect it still hide and reset!!!?? jquery

I have select options contains languages, it’s supposedly that user choose multiple options (languages) or an option (language), and i want user when choose an option (language), new select option …