Question: Warning, solutions may have been lost

I am solving a system of equation, and whenever I used the "solve" command, its showing "Warning, solutions may have been lost", The system of equation is like that, Pls help as soon as possible.

e1 := (1/2)*alpha[2]^2+6*delta*alpha[2];

e2 := alpha[2]*alpha[1]+delta*(10*alpha[2]*lambda-20*alpha[2]*d+2*alpha[1]);

e3 := -V*alpha[2]+(1/2)*alpha[1]^2+alpha[2]*alpha[0]+delta*{8*alpha[2]*(d^2-lambda*d+mu)+3*alpha[1]*(lambda-2*d)+(4*alpha[2]*lambda-8*alpha[2]*d)*(lambda-2*d)};

e4 := -V*alpha[1]+alpha[2]*alpha[-1]+alpha[1]*alpha[0]+delta*{(4*alpha[2]*lambda-8*alpha[2]*d+2*alpha[1])*(d^2-lambda*d+mu)+(2*alpha[2]*d^2-2*alpha[2]*lambda*d+2*alpha[2]*mu+alpha[1]*lambda-2*alpha[1]*d)*(lambda-2*d)};

e5 := C-V*alpha[0]+(1/2)*alpha[0]^2+alpha[1]*alpha[-1]+alpha[2]*alpha[-2]+delta*{(2*alpha[2]*d^2-2*alpha[2]*lambda*d+2*alpha[2]*mu+alpha[1]*lambda-2*alpha[1]*d)*(d^2-lambda*d+mu)+alpha[-1]*(lambda-2*d)+2*alpha[-2]};

e6 := -V*alpha[-1]+alpha[0]*alpha[-1]+alpha[1]*alpha[-2]+delta*{(alpha[-1]*lambda-2*alpha[-1]*d+6*alpha[-2])*(lambda-2*d)+2*alpha[-1]*d^2-2*alpha[-1]*lambda*d+2*alpha[-1]*mu};

e7 := -V*alpha[-2]+(1/2)*alpha[-1]^2+alpha[0]*alpha[-2]+delta*{(alpha[-1]*lambda-2*alpha[-1]*d+2*alpha[-2])*(d^2-lambda*d+mu)+(2*alpha[-1]*d^2-2*alpha[-1]*lambda*d+2*alpha[-1]*mu+4*alpha[-2]*lambda-8*alpha[-2]*d)*(lambda-2*d)+6*alpha[-2]*d^2-6*alpha[-2]*lambda*d+6*alpha[-2]*mu};

e8 := alpha[-1]*alpha[-2]+delta*{2*alpha[-1]*(d^2-lambda*d+mu)^2+(4*alpha[-2]*lambda-8*alpha[-2]*d)*(d^2-lambda*d+mu)+6*alpha[-2]*(lambda-2*d)*(d^2-lambda*d+mu)};

e9 := (1/2)*alpha[-2]^2+6*delta*alpha[-2]*(d^2-lambda*d+mu)^2;

solve({e1, e2, e3, e4, e5, e6, e7, e8, e9}, [alpha[2], alpha[-2], alpha[0], alpha[1], alpha[-1], V, C])

Warning, solutions may have been lost