AMP plugin breaks my menu on mobile

Hi there,

I am reopening the topic I created. I have just reinstalled the AMP plugin and set the Transitional mode. All the settings I was told to do are still active (see thread https://www.ads-software.com/support/topic/amp-plugin-breaks-my-menu-on-mobile-2/), but my menu doesn’t work anymore on mobile. Parameters I was told to do are:
1. Goto AMP -> AMP Compatibility
Click Enable checkbox
Add the details in input boxes in one row the final result will be someing like this screenshot
Add div below Element
Add mobile-header-menu-w below Element Class
Add show below Element Toggle Class
Add div below Action Element
Add mobile-menu-toggler below Action Element class
Add active below Action Element Toggle Class
Once all inputs are in place click save`

2. Add the following CSS in Appearance -> Customize -> Addtional CSS
.show {
display:block;
}
html[amp] .mobile-header-w .mobile-header-menu-w.show {
display:block;
text-align:left;
padding: 20px;
}

html[amp] .mobile-header-w .mobile-header-menu-w ul.sub-menu {
display:block;
padding-left:20px;
}
.mobile-menu-toggler.active:focus{
outline:0;
}

I am using Neptune theme, and I am using a mega menu plugin: Max Mega Menu.

Can you help me to fix this issue ?

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