I think i found why this error is generated!
Indeed, the url created by moodle to reach the course is not clean. In fact, some "&" are writed in the adress bar as html code ("&") so the platform can't interpret the url. If I modify this bad "&" by "&" the redirection operates without problems.
Here is an exemple of the bad url given by moodle:
Do you know which part of the moodle code is responsible of the URL generation (this error appears only for scorm course format without scorm activity loaded)?