[wp-testers] undefined function

[Dispoweb2.0[Ghaith]]

 Hello,

I just upload the new files of the 2.6.1 branch and when I tried to upgrade
my install i get some error :
*Fatal error*: Call to undefined function require_wp_db() in *
/home/mounted**********/domain.com/wp-settings.php* on line *211*

anyone have an idea about that and how to fix it ?

I re-upload the files and still get the same problem...

Thanks in advance

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