solving differencial equations using labview

Hi

I want to solve following  nonlinear differential equations by labview 2013.

dx1/dt=(1/((pg1/x1)*252.7902*(5.4457+0.0876*x1+(430/(x1*x1))-28.5156*(10e-6)*x1*x1)))*((F*pg1/(tg1+273))*0.0021*(748.84+4.7674(tg1+273)+(23402/((tg1+273)*(tg1+273)))-1.5519*(10e-3)*((tg1+273)*(tg1+273)))*(tg1+273)-(F*pg1/(tg1+273))*0.0021*(748.84+4.7674*x1+(23402/(x1*x1))-1.5519*(10e-3)*(x1*x1))*x1+88*10.066*(10e3)*(x2-x1))

dx2/dt=(1/(88*998*4184))*(q-10.066*(10e3)*88*(x2-x1))

For this I made a vi and use an approach similar to an example i find in Labview 2013.( example Planar Three Body Problem). but solver block doesnt generate any output (time or x values).

I attached my vi. Can anyone help me with this please? its some how urgent.