I have a problem with creating poppup form.
My website is on Joomla 4.2.2, php 8.0. I use JCE and Page builder CK to edit the articles.
I build the template myself with Gantry 5.
First, when the website was in joomla 3, thats works. But the installation is old and I don't remember how...
Now, when I put "JHTML::_( 'behavior.modal' );" to my template index.php , it's crashing my site. (500 behavior::modal not found.) I try it obviously on localhost.
I'm following steps from link: crosstec.org/en/support/online-documenta...-lightbox-popup.html
Can you help me?
Without this, link don't show up on my page (but in the preview, yes...). And, an additional detail: when I look in the code of the link, I find everywhere amp; which are added and that I cannot delete (they always come back). I dont know if it's the same issue.