When i run the exploit the server crash & reboot

[X-HAT]

Hey,
After executing the exploit (/etc/passwd based root) my server crash. what should i do ?
Kernel : Linux nsxxxxxx.ip-xx-xx-xx.eu 3.17.2-xxxx-grs-ipv6-64 #1 SMP Sat Nov 1 12:29:58 CET 2014 x86_64 Intel(R) Xeon(R) CPU E5-1650 v2 @ 3.50GHz GenuineIntel GNU/Linux

Thanks.