JGAurora A5 stopping mid print without error even when pronterface is running and monitoring ??

coolt5

i just had the same problem with usb stick so i tried the usb cable and have the same thing.
so i tried to print using pronterface its self using usb cable and this what i get:
my jgaurora a5 with 11-1-18+baby & mesh
 Marlin Firmware - 1.1.8C
LCD firmware - v3.03
The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49   ( here printing just stopped for no reason )
(so i unplug the usb)

[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed

[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed (WindowsError(5, 'Access is denied.'))
(here i plug the usb cable back )

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

The progress should be updated on the printer now: M117 26.44% Est 1:49:49

thats all no error ???

any help pls?

coolt5

found the problem . i think so but its not

disconnecting my filament sensor

now after i update my lcd to 3.0.3 so i can see what error 
i have this.

ERROR:THERMAL RUNAWAY, SYSTEM STOPPED! HEATER_ID: BED

ANY HELP