Error in WP 6.0.1

Hi, I’d really like to use Everviz and this plugin but am getting some errors in WP 6.0.1

On the plugin settings screen:

Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($function) must be a valid callback, function “everviz_highcharts_doAdminPage” not found or invalid function name

On the post or page editing screen:

Notice: Function register_rest_route was called incorrectly. The REST API route definition for everviz/v1/license is missing the required permission_callback argument.