Our working time is from 9am until 5pm CET during weekdays.

With the latest update of the Google Chrome,  a new issue arose with menu display. 
In order to resolve it, check this article https://select.ticksy.com/article/11738

Okay
  Print

Select Slider overlap issue

This is the issue that started to occur with Google Chrome 55.x versions, in order to fix this on your side, please make sure that you are using latest theme version. You can update the theme by following instructions from the theme documentation, just do not forget to clear browser cache after the update.

You can also fix this by adding custom CSS code below to Select Options > General > Custom CSS field:

.full_width {
    position: relative !important;
    z-index: 5000;
}