Buffer size too small Process interrupted.

i have the attached issue

when i try to begin drawing with cnc

any one have same issue ?

You should probably ask in a GRBL forum sine 99% of Arduino users are not running their Arduino as a CNC controller.

To figure it out yourself, search the Grbl Controller 3.0 source files (GitHub - zapmaker/GrblHoming: QT-based gcode user interface for grbl on arduino) to find out where that error is generated.