Why would you want to load the entire page shell in a lightbox? Mostly (I think) you want to load a specific part of a page in a lightbox. That's what the views are for.

However if you want it should work like you tried. Did you confirm you get in the view? Cache flush is always what makes stuff work for me as I forget that I added a new view ;)

Thanks @jerome,

Yes I confirm that I dit it from a view. But nothing happen.
The lightbox try to load and remains in progress.

Regards,

Is the view registered as an AJAX view? What does the webbrowser console (or network tab) say the response in from the request to the url the lightbox is trying to load?

This is https://github.com/Elgg/Elgg/blob/3.3/mod/uservalidationbyemail/languages/en.php#L12

Of course, you can edit this file -> save it -> run 'Flush the caches'.

But you will lost all changes in next Elgg update.

So, I very recommend to use this awesome plugin to edit any language strings which you want.

Please, read these docs (especcially about vsprintf syntax) to don't make fatal errors on your site.

I've made a pull request with a fix at https://github.com/Elgg/Elgg/pull/13252. If this PR gets merged the error will be fixed in the next release, i.e. Elgg 3.3.8.

In the meantime, you can correct the string yourself as RvR suggested by editing vendor/elgg/elgg/mod/uservalidationbyemail/languages/en.php (or if you installed Elgg with the zip file edit mod/uservalidationbyemail/languages/en.php). If the wrong string is fixed in the next Elgg release you would have to edit the file only this one time now.