Thanks for the link…. now for the bad news…..it appears you did a major change of the menu location and layout structure, but I also looked at the source code and if I’m not mistaken, you have the menu containers in an advanced text widget and published in the Banner widget position. Because of this, it changes how the menu functions with your drop down but also any css styling. I won’t really be able to help you out on this one because of the amount of customization you did as it’s not the original setup, which is what support covers only. With minor custom changes it would be ok, but this one looks like you did a fair amount of change.
If your issue is related to the submenu position, you will need to adjust the menu css for the submenu level relating to the
selector for the “right” positioning around line 111 for the menu styling. It’s currently -2px.