Cvx DCP error:positive constant./convex

Hello everyone!This kind of problem happen in the following statement, i have no idea how it failed.
Is anyone interesting or experienced in this problem ? please give me a favor. Thank u very much.
qJ is variable(2,1).Others are known quantities.Part of the code is as follows：
variable qJ(2,1)
subject to
h_JE = beta0/(quad_over_lin(qJ-wE,1)+H2^2);
for n = 1:N
sum(log(1+P(n)/(P_J*h_JE+sigma_2))) <= eta;
end
cvx_end

The error is shown on the third line of the code. Error is：Disciplined convex programming error:
Cannot perform the operation: {positive constant} ./ {convex}

Thank you very much for your answer!

The code triggered an error message because your code doesn’t follow CVX’s rules.

Have you proven the constraint is convex?

Thank you for your reply! I think I’ve solved this problem.