The Translational Joint shown is a Body-Body joint. That is wrong.  Delete that Joint.

Create a new Translational joint, but select Body-Ground in the Details window. Then make sure the Reference Coordinate System has the X axis pointing down.

Once that joint is created, add the Joint Load.

Under Analysis Settings, turn on Auto TIme Stepping.

Set the Initial and Minimum Substeps to 100 and the Maximum Substeps to 10000.

Turn on Large Deflection.

Under the Connections folder add a Contact Tool and Generate Initial Contact Status and check the result to make sure the contact is closed.

What kind of material model do you have for the bone?