oups first crash , PhoenixMiner.exe do not respond

cpu wasnt OC ,system is stable ....
im connected on rig over teamviewer ,but rig stop minning ....

dont have see any error message ,but PhoenixMiner.exe was frozen ..... and stop minning

first time i got a crash/froz , and not overheat
im in france and T° is cold here -6°c /+6°c ... ( GC was 55-59°c )

chinese watchdog usb key cant spy PhoenixMiner.exe ....
(dont want take my .bat or PhoenixMiner.exe )  
only reboot if windows frozen

any solution ?

how to check if phoenix is alive ?
and kill process & restart bat if no answers after few minutes ?
(easy .bat file is welcome here )

 
  -log Selects the log file mode:
     0: disabled - no log file will be written
     1: write log file but don't show debug messages on screen (default)
     2: write log file and show debug messages on screen

with my "crash"
i try to log it , but log save all ... ( i have small hd... and no space ... )

any way to save only critical message / error ?

+ limit size of log file ?

( i find this : tasklist | findstr -i PhoenixMiner.exe )
but it just check if app is started ,but dont check if working