PPTP Client problem in RB1000 with ROS 3.13/3.14

RouterOS General
1

i have problem with my pptp client interface in my Mikrotik RB1000 (using ROS v3.13/v3.14).
If i try to turn off or remove that interface, my RB1000 always reboot itself.
After reboot, it shows this message in our log router

jan/01/1970 07:00:04 system,error,critical System rebooted because of kernel failure 
jan/01/1970 07:00:04 system,error,critical router was rebooted without proper shutdown

Until now, i can’t turn off that interface …
Please help me … any one can help me ???

2

Please, contact MikroTik support (support@mikrotik.com) with attached support output file, when you are not able to remove interface from 3.14 version.