Try to print prusa mk4

Hi ,
I try to print using my Prusa mk4 i get connected to printer ( see it in the terminal view ). When i press "print " i got an message
"Changing monitoring state from "Starting" to "Printing""
in the terminal view i got an error
this is the a copy log from terminal view
Send: N1 M73 P0 R412*19
Recv: ok
Send: N2 EXCLUDE_OBJECT_DEFINE NAME='bcketLinks_stl' CENTER=77.488,71.601 POLYGON=[[93.974,19.677],[90.827,19.677],[90.827,39.505],[87.827,39.502],[87.827,41.237],[95.927,41.237],[95.927,42.691],,[54.907,96.929],[55.540,95.258],[56.004,93.645],[56.285,91.990],[56.379,90.313],[56.368,62.719],[56.212,61.047],[56.004,59.947],[55.540,58.334],[54.907,56.663],[54.734,55.713],[54.725,55.010],[54.977,53.702],[55.541,52.545],[56.412,51.543],[57.325,50.906],[55.539,50.906],[55.539,41.237],[79.827,41.237],[79.827,39.502],[76.827,39.505],[76.827,1
*9.677],[72.797,19.677],[72.797,11.682],[93.974,11.682]]123
Recv: Error:No Checksum with line number, Last Line: 1
Recv: Resend: 2
Recv: ok"
end of log

The printer enter display "emergency stop " message
and in connection view i see " no serial port found "
before i try to print the serial port = " /dev/ttyACM0"
Any Help ?
regards Doron

Any help

Hello @sonra !

What happened to the template?

Hi
I found the problem with help from Prusa forum user
The setting in " Printing " " firmware " " G-code favor " was set to "klipper " and not
" marklin 2 "
Don' t why and when i change because I uses PronterPace long time and it suddenly stop working maybe then
Doron

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