Simulator stopped working

Print file information:
RUN_IN_PLACE=no
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/usr/bin
LINUXCNC_TCL_DIR=/usr/lib/tcltk/linuxcnc
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/usr/lib/linuxcnc/modules
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/usr/share/linuxcnc/tcl/msgs
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.5
LINUXCNC - 2.5.3-96-g58501b0
Machine configuration directory is '/home/sven/linuxcnc/configs/sim/axis'
Machine configuration file is 'axis-Vee-4-axes.ini'
INIFILE=/home/sven/linuxcnc/configs/sim/axis/axis-Vee-4-axes.ini
PARAMETER_FILE=sim.var
TASK=milltask
HALUI=halui
DISPLAY=axis
Starting LinuxCNC...
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
Starting TASK program: milltask
Starting DISPLAY program: axis
Shutting down and cleaning up LinuxCNC...
Killing task linuxcncsvr, PID=9323
Killing task milltask, PID=9355
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments
Cleanup done

Debug file information:
Can not find -sec MOT -var MOT -num 1 
Can not find -sec IO -var IO -num 1 
Can not find -sec LINUXCNC -var NML_FILE -num 1 
Can not find -sec EMC -var NML_FILE -num 1 
X Error of failed request:  BadRequest (invalid request code or no such operation)
  Major opcode of failed request:  153 (GLX)
  Minor opcode of failed request:  19 (X_GLXQueryServerString)
  Serial number of failed request:  749
  Current serial number in output stream:  749
9323
  PID TTY      STAT   TIME COMMAND
9355
  PID TTY      STAT   TIME COMMAND
Stopping realtime threads
Unloading hal components