plotting – ParameticPlot3D don’t show Image

Hello I’m new to mathematica and I was triyng to do a Plot but the Mathematica don’t return Image.

The Code I’m using is this:

solDif = NDSolve({r'(t) == 2*r(t) + r(t)*g(t)/(2 + 2*r(t)) + u(t)/(4 + 4*r(t)), u'(t) == 2*u(t) - 3*u(t)^2/(2 (1 + r(t))^2) + u(t)*g(t)/(4 (1 + r(t))), g'(t) == u(t)^2/(8 (1 + r(t))^3) - 3*u(t)*g(t)/(8 (1 + r(t))^2), r(0) == 10, u(0) == 10, g(0) == 0}, {r, u, g}, {t, 0, 100}, MaxSteps -> 30000);

flux1 = ParametricPlot3D( Evaluate({r(t), u(t), g(t)} /. solDif), {t, 0, 100}, PlotRange -> All, PlotStyle -> Directive(Thickness(0.015), Green), PlotPoints -> 250)