modules/FilePicker/lib/class.Profile.php

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L141 in function is_filename_acceptable :  return always false; cause
is_filename_acceptable() not defined in parent Class FilePickerProfile

if (!parent::is_filename_acceptable($filename)) return FALSE;
#---correction (comment the line)
//if (!parent::is_filename_acceptable($filename)) return FALSE;

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L 145 $filename wrong syntaxe in function is_filename_acceptable

$ext = strtolower(substr(strrchr($file_name, '.'), 1));
#---correction
$ext = strtolower(substr(strrchr($filename, '.'), 1));