EGM ERROR 50452: External Motion Interface cyclic error

in UpFeed
Dear Sirs,
We are trying to test EGM path correction function implemented by our
Laser Vision camera.
Unfortunately we get:
EGM 50452: External Motion Interface cyclic error
When we send path correction messages of the type:
header {
seqno: 1
tm: 343434
mtype: MSGTYPE_PATH_CORRECTION
}
pathCorr {
pos {
x: 0.0
y: 0.0
z: 0.0
}
age: 157
}
pos.x is 0.0
pos.y in the range -17.0 + -17.0 mm;
pos.z in the range 50. -70. mm;
Comments
"Communication with the External Motion Interface input source, for example a sensor or other device, has failed."