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You modified your .css file

Go to /themes/your_theme/assets/css folder. Check custom.css - it seems you rewrote some .css styles of js files.

How to check it fast?:

1. Go to /themes/your_theme/assets/css/custom.css 

2. Copy all data (ctrl+a ; ctrl+c somewhere to keep it).

3. Delete all data from custom.css

4. Go to performance, clear cache.

If your menus are good after point 4, it seems you rewrite .css styles.

5. Restore your custom.css and then try to find error inside.

The same you can do for .js file in /js/ folder