Erreur E_ALL captée en début d'index.php :
Array
(
    [type] => E_ERROR
    [message] => Uncaught TypeError: Mvcbb::ab_testing(): Argument #1 ($ab_param) must be of type string, null given, called in /homepages/38/d310084371/htdocs/generappli/index.php on line 235 and defined in /homepages/38/d310084371/htdocs/generappli/fonctions_std.php:1745
Stack trace:
#0 /homepages/38/d310084371/htdocs/generappli/index.php(235): Mvcbb->ab_testing()
#1 /homepages/38/d310084371/htdocs/barral/Main/index.php(3): require('/homepages/38/d...')
#2 {main}
  thrown
    [file] => /homepages/38/d310084371/htdocs/generappli/fonctions_std.php
    [line] => 1745
)