tracking 600d 50mm

I tracked some footage with my 600d, the settings were f-stop: 19 focal length: 50mm (prime) shutter: 100/s ISO:200.
I tracked it and it looks nice but i have an issue with solving for the movement. The error is 55. But I checked the camrea data and its all right

I’m not very familiar with the details of camera tracking but I am a photographer. The 600D has a crop sensor with a 1.6x factor so your 50mm lens is effectively 80mm (compared with full frame) on this camera.