Sent it through the Customer support form through nuevvo.com/contact

The issue is located in index.php of your template.
There was a change in the 1.0.2 version of the template which should have been added after you updated your package in that version manually since index.php is not being overridden.

You need to change line 34withwhich is included in v1.0.2.

Just keep in mind after every update of your template package to also check if any changes have been added to the index.php of the template as well. You can advise the template's Changelog under Downloads section for the changes of each package.

Hi, thank you, now seems to working!
I will test later...
However, I would like to point out that the site website.free-time-activities.com/restaurant has been installed from the two package "Quickstart Package for Joomla! 2.5" + "Template Package v1.0.2 Update" and in this last one package doesn't exist the index.php with this modification !
The files tmpl_nokkori-v1.0.2_j2.5-3.x_update.zip has been downloaded yesterday...

I only have a small request: the plus sign (readmore) is not displayed, perhaps I've disabled some module ?

When you download the quickstart package you install the latest template package, not the update version of the latest template package. The update version is for already modified installations and that is why it does not include index.php, custom.css and custom.js files.
To compare the index.php file of your version with the one of the latest version, just download the full template package.

Where you do not see the readmore plus sign? To which part?

Ok, thank you for explanation.

See attachment: the first image is your demo, the second is my website that has no more the "readmore plus sign"
Probably I disabled something (module?) that I should not...

Just enable the readmore option through the slideshow module.

Ok, thanks for all !

You are welcome.
Glad you sorted all out.