Bad html tags

Hi
I have searched for some help on malformed html tags but can′t find.
Whit the free version I have set a post slider with 3 post, in 2 there are malformed html tags:

<div class="n2-ss-slider-1 n2_ss__touch_element n2-ow" style=>
<div class="n2-ss-slider-2 n2-ow">
<div class="n2-ss-slider-3 n2-ow" style=>

The ofending part is style=

And a more strange thing:

<svg viewBox="0 0 600 300" data-related-device="desktopPortrait" class="n2-ow n2-ss-preserve-size n2-ss-preserve-size--slider n2-ss-slide-limiter"/></svg>

In this code, all the test tools I have used say the </svg> is a standalone close tag.

you can check it at https://intersindicalrm.org/

Tools I have used to test:

https://validator.w3.org/
https://jonaquino.blogspot.com/2013/05/unclosed-tag-finder.html