The error description tells you your problem. You copied from somewhere a PRINT_START macro. This still uses default_parameter. Klipper stops to support these more than a year ago
#Need help MKS Gen 1 Board an klipper
urban raven
default_parameter_bed_temp = 60
default_parameter_extruder_temp = 200
gcode:
G28
G29
G90
G1 X0 Y0 Z5 F3000
G1 Z0.15 F300
G92 E0
G1 X20 Y5 Z0.3 F5000.0
G1 Z0.3 F1000
G1 X200 Y5 F1500.0 E15
G1 X200 Y5.3 Z0.3 F5000.0
G1 X5.3 Y5.3 Z0.3 F1500.0 E30
G1 Z3 F3000
G21
G90
M83
G92 E0```And the worst thing your print start does not heat at all.
I really recommend to best case do your own print start or search for a better one.
The get rid of the error remove the default parameter lines
See https://www.klipper3d.org/Command_Templates.html#macro-parameters to read how to set defaults for your variables
dreamy ore
