3rd navigation on the top left

Try this:

.third-navigation ul li:hover a {
    background-color: #fcc23;
}

Perfect, thank you :)

No problem :)

Hi there,
the hosting provider A2 proposed me an optimization but now the 3rd navigation does no more show up. It shows only a part of the code in the hook. https://ibb.co/xG8Hr5t

Is it possible to solve this?

Link to the staging site is in the private information.

Thank you.

What's the exact code you are using?

Hi Ying,
thank you for the question. After checking the hook I found that they've inserted in the wp-config
define('DISALLOW_FILE_EDIT', true); and this blocked the php execution.
I've canceled it and now everything works fine again :)

Glad to hear that :)