translation classic 1.7

[mrweb]

Hi

I have just setup Prestashop 1.7.6.0

I want to update translations and I get the error message (attached file) :

Invalid resource provided "1.2"...... in /home/www/xxx/... line2, column 0

i have installed another template I bought : same error

Exported the fr-FR.fr-FR.xlf and placed it in /themes/theme1/translations/fr-FR/

i have updated language from PrestaShop.com

Still not working

Tried also to copy language from classic to new template, I get the message :
Impossible to copy "themes/classic/lang/fr.php"
-> This file is missing on the ftp

Thanks from your help