warning:
1."The discretization of the following load curves
has resulted in differences in value that exceed 10.00
percent of the median value of the load curve
Curve ID 1 has discretization error of
3.381493 which is 30.5 percent of its median"
2."ALE FSI coupling type 1,2,3 cannot couple with rigid
2：CONSTRAINED_LAGRANGE_IN_SOLID
So the easiest error to debug is that part ID 2 has rigid nodes somewhere. I assume the part material isn't rigid, but maybe you have some CNRB or nodal constraint somewhere on that part?
The curve error is probably due to the fact that you stress-strain curve is too bouncy. Aka the slope changes too much from point to point. You can try to smoothing your curve or even add nodes via interpolation to reduce the drastic slope changes.