Changing Language

look here: https://codex.www.ads-software.com/WordPress_Localization

Please, next time try “Search First” in upper right corner, before you ask. The word “Language” gave me the above link.

regards

Depending on how much (and how) core WP is translated in the French version of WP, it may be enough to remove the language code in wp-config.php: change define ('WPLANG', 'fr_FR'); to define ('WPLANG', '');

I am very-very sorry about my careless.

But anyway, thank you very much for helped me solving this problem.

??