Width of the theme since the last update

Hi Guys,

since your last update I got the problem with my buddypress-Installation, that the frontpage looks normal but pages like these are using the complete width of the screen, which doesn′t look very nice: https://germansimracing.de/mitglieder/cellobello/

In the last version this was not there. Could you please fix it? Or what should I do?

Thanks and regards,
Julian