edit item gallery

Hello:
Problem edit item in tab gallery:
To check forum and to find questions of plugin language (I Spanish language) and not authorized characters.
The problem is in not authorized characters.
But I need characters:

Example: I want a description like that:

Cost: 3000 €.
Country: Spain.

It creates code <br/> and it does not work edit.
Some solution?
Thank you once again.

Believe gallery descriptions don't allow HTML in descriptions. Especially if using lightbox display. Try using pop-up display as believe it shows description below the image and perhaps will allow html there.

Not. There it does not allow either.
The problem is that when I write in field item description, plugin translates to html and places <br/>.
I write:
' A paragraph '
' Another paragraph '
and turned into ' A paragraph ' <br/> ' Another paragraph '
and this makes not possible to edit item.
It would be necessary to correct the field item description.
Can there be solution?
Thank you

Right, as I've explained it does not allow HTML. The description is used on mouseover and doesn't actually render as HTML (you can't have HTML in a title attribute). You'd need to modify the plugin to allow this.