fullslider non responvie and lot of problem since update

Hey William,
Sorry for the late reply and thanks for the link and the kind words.
1: I have linked to the child theme in the Private Content area, please try installing this one. I recommend first going to Enfold Theme Options > Import/Export > Export Theme Settings File and saving a copy of it to your desktop, you can then use it later if you have any issues. I also recommend disabling all caching plugins and the Enfold Theme Options > Performance > JS & CSS file merging and compression while you are installing the child theme, you can enable the plugins after you are successful with the install.
2: for your layerslider on mobile, I have tested on an Android with Chrome and on the “/liveaboard-diving-in-alor/” page the slider doesn’t show but the layerslider “circle-timer” does show, you are getting Mixed Content errors in the console for images so I believe that if you fix your “https” issue the slider images will show. I recommend the Really Simple SSL plugin to force the “https” and solve the Mixed Content errors.
2b: I noticed that on each page the layerslider is on for mobile that you have extra padding & margin around the layerslider giving too much white space, so please try this css to correct, I tested it on several of your pages and it seems to work good.
Please try this code in the General Styling > Quick CSS field or in the WordPress > Customize > Additional CSS field:

@media only screen and (max-width: 767px) { 
#top main.template-page.content.ls-overflow-visible {
	padding: 0 !important;
}
#top .flex_column.flex_column_div.first.avia-builder-el-0.ls-overflow-visible {
	margin-top: 0 !important;
}
}

After applying the css, Please clear your browser cache and check.

3: You may find that a 1/3 -1/3- 1/3 elements to be side by side on mobile will be hard to read but if you point out the exact elements I will try to write some css that does this for you so you can see.

Best regards,
Mike

Hi,
Glad we were able to help, if you have any further questions please create a new thread and we will gladly try to help you. Thank you for using Enfold.

Best regards,
Mike