Remove the conflict of select2 versions between ACF and LifterLMS

functions.php

<?php
add_action( 'admin_enqueue_scripts', 'custom_admin_scripts_styles' );

function custom_admin_scripts_styles() {
	global $post_type;

	if ( 'course' == $post_type ) {
		global $post_type;
		wp_dequeue_script( 'select2' );
		wp_dequeue_style( 'select2' );
		wp_enqueue_script( 'llms-select2', plugins_url( '/assets/select2/js/select2' . LLMS_Admin_Assets::$min . '.js', LLMS_PLUGIN_FILE ), array( 'jquery' ), '', true );
		wp_enqueue_style( 'llms-select2-styles', plugins_url( '/assets/select2/css/select2' . LLMS_Admin_Assets::$min . '.css', LLMS_PLUGIN_FILE ) );
	}
}