I'm trying to create a widget that goes just to insert js code to activate functions on specific elements classes or ids.

the attribute not appear(all widget same problem) < i think its a plugin conflict>

and I have several strange errors and problems.

EDIT1: a lot of error is my fault i have inserted wrong part of code which was not necessary as the <script> tag

EDIT2: i found the plugin conflict. i dont know why the plugin zemez jet-elements block the correct functionaly of unlimited elements. 

its in staging. but if i deactivate jet elements, all work correclty 

in production site apparently all work and no conflict.