Printing Problem

[Agni 0]

My gcode file is not executing in anet et4 printer after slicing from cura. Printer lcd shows directly like 34%,44%,50%etc after running gcode in few seconds.Old files are working fine even these are also sliced by cura.

Please help me.

Thank you.

[GregValiant 1,355]

Post one of the good gcode files and one of the ones that doesn't work.  Make the file names obvious so we can tell which is which.  It is often something simple.  Does that printer have a heated bed?