NGSXFEM Spacetime example higher order in space

I copied the code from this example of a ngsxfem space-time implementation.
github.com/ngsxfem/ngsxfem-jupyter/blob/master/spacetime.ipynb

However, when I tried setting the spatial order k_s = 2, I get the error

NgException: XLocalGeometryInformation * Create | ELEMENT_TYPE is not treated in Assemble BilinearForm 'biform_from_py'

It specifically refers to the
a.Assemble()

step inside the UpdateLinearSystems() function. This occures when running the time loop. Has anyone had similar issues/know what the problem is?

I found the solution, the problem was that I had used a quad mesh instead of a triangular one.

Now I instead have the problem that the program crashes when I use temporal order k_t=3 or higher.