Server crashes

Hi my server is crashing like every 2 hours, this is one of the crash dumps:
http://dumps.metastruct.uk.to/dumper.py?dump=srcds_1678491_crash_2015_8_31T16_46_14C0.mdmp&key=TGYBXB_Tz8q0MEvhOV5EPpncxkGdUJzqNGemtMAngrICa5TYyycfDyvTiYTEWPscE_L_rBTdnGLEECxAcCeo7s6QQez7PCmjbhWA3fcZpiugw_wgGhpBuxlA-a3Efdh5e2abmx_Mg-yav6eLbHg4u3rL_H4g9JK6xEb5_2MR1xU=

Any idea how to fix this?

could you give us a list of addons installed if any

You find all addons in the link under “Chat log and cvars / general info”