Subscript[m, 1] = 125.6; v = 246; [Lambda]hs = 0.015; Subscript[M,
p] = 32;
(*initial condition for higgs coupling dependent on M and Sin[Theta]
and at t=0*)
[Lambda]h =
  Divide[Subscript[m, 1]^2,
    2*v^2] + (Sin[[Theta]])^2 Divide[(M^2 - Subscript[m, 1]^2),
     2*v^2];
(*initial condition for singlet coupling dependent on M and Sin
[Theta] and at t=0*)
[Lambda]s =
  Divide[2*[Lambda]hs^2, (Sin[2*[Theta]])^2]*
   Divide[v^2, (M^2 - Subscript[m, 1]^2)]*(Divide[
      M^2, (M^2 - Subscript[m, 1]^2)] - Sin[[Theta]]^2);
gsu = 0.64;(*initial condition for Su(2) coupling at t=0, where
t=Divide[[Mu],mtop]*)
gy = 0.34;(*initial condition for u(1)
coupling at t=0*)
gs = 1.16;(*initial condition for SU(3) coupling at
t=0*)
yt = 0.93;(*initial condition for top quark coupling at t=0*)

ode2[tp_, [Theta]_, M_] :=
 Module[{sol},
  sol = NDSolve[{16*Pi^2*Dt[g[t], t] == Divide[-19, 6]*g[t]^3,
     16*Pi^2*Dt[Subscript[g, Y][t], t] ==
      Divide[41, 6]*Subscript[g, Y][t]^3,
     16*Pi^2*Dt[Subscript[g, s][t], t] ==
      Divide[-7, 1]*Subscript[g, s][t]^3,
     16*Pi^2*Dt[Subscript[y, [Tau]][t], t] ==
      Divide[9, 2]*Subscript[y, [Tau]][t]^3 -
       8*Subscript[g, s][t]^2*Subscript[y, [Tau]][t] -
       Divide[9, 4]*g[t]^2*Subscript[y, [Tau]][t] -
       Divide[17, 12]*Subscript[g, Y][t]^2*Subscript[y, [Tau]][t],
     16*Pi^2*Dt[Subscript[[Lambda], h][t], t] ==
      24*Subscript[[Lambda], h][t]^2 - 6*Subscript[y, [Tau]][t]^4 +
       Divide[3, 8]*(2*g[t]^4 + (g[t]^2 + Subscript[g, Y][t]^2)^2) +
       Subscript[[Lambda], h][
         t]*(-9*g[t]^2 - 3*Subscript[g, Y][t]^2 +
          12*Subscript[y, [Tau]][t]^2) +
       Divide[1, 2]*Subscript[[Lambda], hs][t]^2,
     16*Pi^2*Dt[Subscript[[Lambda], hs][t], t] ==
      4*Subscript[[Lambda], hs][t]^2 +
       12*Subscript[[Lambda], h][t]*Subscript[[Lambda], hs][t] -
       Divide[3, 2]*(3*g[t]^2 + Subscript[g, Y][t]^2)*
        Subscript[[Lambda], hs][t] +
       6*Subscript[[Lambda], hs][t]*Subscript[y, [Tau]][t]^2 +
       6*Subscript[[Lambda], s][t]*Subscript[[Lambda], hs][t],
     16*Pi^2*Dt[Subscript[[Lambda], s][t], t] ==
      2*Subscript[[Lambda], hs][t]^2 +
       18*Subscript[[Lambda], s][t]^2, g[0] == gsu,
     Subscript[g, Y][0] == gy, Subscript[g, s][0] == gs,
     Subscript[y, [Tau]][0] == yt,
     Subscript[[Lambda], h][0] == [Lambda]h,
     Subscript[[Lambda], hs][0] == [Lambda]hs,
     Subscript[[Lambda], s][0] == [Lambda]s}, {g[t],
     Subscript[g, Y][t], Subscript[g, s][t], Subscript[y, [Tau]][t],
     Subscript[[Lambda], h][t], Subscript[[Lambda], hs][t],
     Subscript[[Lambda], s][t]}, {t, 0, 40}]; {Subscript[[Lambda],
     h][tp], Subscript[[Lambda], hs][tp],
    Subscript[[Lambda], s][tp], g[tp], Subscript[g, Y][tp],
    Subscript[g, s][tp], Subscript[y, [Tau]][tp]} /. sol[[1]]]
RegionPlot[
 Evaluate[ode2[tp, [Theta], M][[1]], {tp, 0, 40}] >
  0; {Sin[[Theta]], 0, 1}, {M, 0,
  10^5}](*I want to see the RegionPlot only for the Higgs
coupling(Subscript[[Lambda], h]) for {tp,0,40}, when I vary Sin
[Theta] and M.*)