Nicht dafür.
PS : ich konnte auch nur die Seite sehen, weil im Screenshot oben die Domain zu sehen war.

And you realy inserted to the caption input field some text? There is no reason why the other images have that – and the one not.

I’m afraid you’ll have to reset the footer widgets.
They will have been reset to the default values.

well one thing is that on touch devices ( mobile phones ) there is no hover effect.
you can do this to show it always on the touch device case:

.avia_mobile #top .av-active-gal-item .av-horizontal-gallery-link {
   opacity: 1 !important;
}

or use that class instead touch-device

but that one thing you mentioned i could not reproduce : that there is only a half lightbox button.
Next: on my simulated mobile devices – your gallery do that what you like to have – it opens directly the lightbox on click.

Edit: aha – i know now why – you make the button a 100% width and height.

Das sind custom made svgs. Schau dir die svgs von Enfold mal mit einem Guten Texteditor an ( OSX: Sublime Text oder Windows: notepad++ )
Der Aufbau ist recht ähnlich – ein wenig was über svgs sollte man wissen.

PS : das svg liegt ja im DOM als inline svg file explizit vor. Niemand hindert dich das svg aus dem DOM herauszukopieren ;)
Anleitungen wie man custom svgs einbindet gibt es nicht nur von mir hier an Board genüge :)

PPS: was überigens bei den meisten svg dividern der Fall ist – so auch bei Elementor und Konsorten.

schau mal die Stadt-Silhouette: https://guenterweber.com/#footer

Ein ID wird hier garnicht benötigt – dieses outwards-top-divider ist eine Klasse, damit du das auch auf einer Seite mehrmals nutzen kannst muss das so sein. Diese Klasse geht an die color-section selber:
( bei Color-Section zu Color-Section macht das Überlappen zu der anderen Sektion keinen Sinn, aber falls nochmal ein Slider oder z.B. eine Grid-Row so sein soll …

Wenn du bei den svg-dividern dann wählst:

ist der z-index automatisch auf 100 gesetzt.
Da du jetzt ja einen Übergang von dem Slider zu einer weißen Color-section haben möchtest, wählst du bei Divider Color auch weiß.

Do not forget the custom class to set and :

your idea – to use the following color-section with top svg divider is the right one.
There are twp things to keep in mind:
– the z-index had to be bigger ( this could be done in the alb settings on divider ( keep in front )
– transform-origin default value is : center center
so if you only rotate or mirror the svg – it stayes in the same position : but if you set the transform-origin to top center – it will have the desired effect.

also remember to take the Divider Color equal to the background-color of that color section.

but to use it whereever you like to have it – it is best to give to the following color-section a custom class – f.e.: outwards-top-divider
i prefer the scale transformation – but rotate(180deg) is also possible:

.avia-section.outwards-top-divider .avia-divider-svg-top {
  transform: scaleY(-1);
  -webkit-transform-origin: center top;
  transform-origin: center top;
  z-index: 100;  /*** if you set it in the alb - you don't need this rule here ***/
}

see: https://enfold.webers-webdesign.de/martin/

PS: i transform here the surrounding container of the svg – the reason is not to overwrite the transforms of the svg itself.

it is so simple – but my dear participants are not really interested in a good solution ;) very sad!

do you use WPML ? see here: https://kriesi.at/support/topic/portfolio-grid-does-not-display-category-content-correctly/

if so – update your wpml

depends on the enfold version you are running.
The newest one got a own options dialog on this Image – Advanced tab:

see here an example : https://enfold.webers-webdesign.de/image-overlap/

By the way – you are loading your questrial font from mixed content page – guess it was your developer page :
mf-prod.com/voxius/

if you like to synchronize the colors on your sidebar category listings :

.widget .cat-item-42 a {color: blue}
.widget .cat-item-45 a {color: green}

etc.

maybe this is easier to use instead – because you do not need to look for the ID’s:

.widget .cat-item a[href*="newsletters"] {color: green}
.widget .cat-item a[href*="vie-du-cabinet"] {color: orange}
.widget .cat-item a[href*="publications"] {color: blue}

etc.

try:

.category-podcasts .av-masonry-entry-title.entry-title,
.category-podcasts .post-title.entry-title,
.sort_by_cat a.podcasts_sort_button {
  color: red;
}

.category-newsletters .av-masonry-entry-title.entry-title,
.category-newsletters .post-title.entry-title,
.sort_by_cat a.newsletters_sort_button {
  color: green;
}

.category-publications .av-masonry-entry-title.entry-title,
.category-publications .post-title.entry-title,
.sort_by_cat a.publications_sort_button {
  color: blue;
}

.category-vie-du-cabinet .av-masonry-entry-title.entry-title,
.category-vie-du-cabinet .post-title.entry-title ,
.sort_by_cat a.vie-du-cabinet_sort_button {
  color: orange;
}

etc.
each 3rd line is if you got a sort on categories aktivated

PS: if you like to have an indicator for activated sort cat:
f.e.:

.sort_by_cat a.active_sort {
  text-transform: uppercase;
  font-weight: bold;
}

IMPORTANT : sometimes it is not sort_by_cat but : av-sort-by-term ( if portfolio masonry …)
like here on that masonry: https://kriesi.at/themes/enfold-2017/elements/masonry/

And you see – we could have the problem that a post has two or more cats or portfolio “cats” ( terms )
like in the example page : portfolio_entries-photography and portfolio_entries-illustration

on that portfolio case you got some ID’s to differ what is active sort: ( for that demo page of enfold above )

#masonry_id_photography_sort .av-masonry-entry-title.entry-title {
  color: red;
}
#masonry_id_illustration_sort .av-masonry-entry-title.entry-title {
  color: blue;
}

Well there are a lot of anchors on your page. those invisible headings – and these anchors are found sometimes three times in your submenu.
F.e. the #oeffnungszeiten (h6 id=oeffungszeiten ) – when you scroll to that h6 – so it is on top – the indicator shows the concerning link – but why it does jump to the next – or previous submenu i realy do not know.

Edit: Maybe you test to place the shortcode on the wanted page in a text-block or code-block element.
The Option to show on Target Pages does not do the job ( maybe only on ALB generated pages/posts )