Intel Software Manager crashes

I'm using Parallel Studio 2015 on an Ubuntu 14.04 machine. It worked fine for about one month, then the ISM crashed during an update. When I try to open it I get now:

./ism
Intel(R) Software Manager startup error. Please see /tmp/intel.ism.XXX.error.log for details.

The file mentioned above only contains:

/bin/bash: line 1:   793 Segmentation fault      (core dumped) /opt/intel/ism/bin/intel64/ismcore 2> /tmp/intel.ism.XXX.error.log 1>&2

Thanks for all help!