alain01 wrote:
From Kavok (fr) :

With eXtGallery, 1.11 and Xoops 2.5.5, Multi-upload pictures batch display a "MD5 checksum" error


Solved:
File /modules/eXtGallery/class/photoHandler.php, line 547

function postPhotoTraitement($file, $checkMd5 = true)

Replace by

function postPhotoTraitement($file, $checkMd5 = false)

That's all !

Thanks to Kavok !