Menu and discription erros

Hello,

I found two errors on my site electrouredi.bg : the menu drop down does not work since I have already choose already a category or page to visit.
The other error is the discription of each product which does show unless you click on the discription.
I recently (2 days ago) installed new fresh copy of my Joomla becasue the previous version (5.2.14) had issues with updates.
I am not sure whether this has anything to do but its better to share it.

Thanks in advance