can't run batch processes anymore

I've just install this theme on my main website and I am still satisfied. But there is one problem: When I would run the update script (.../admin/reports/updates/check...) he start and directly he send me to my accountpage. So I can't run the script now. Did I do something wrong? How can I let it work? Thanks for the comments!

EDIT: no batch process can be run! They don't work, send me to the accountpage but noticed that the task is done... but he did not.