Matlab - ode15s "Too many Input Arguments" - matlab

Question

I am trying to create a program to solve a moment methods for a polymer reaction. However, when im run the code this error appears "Too many Input Arguments", any help? (sorry for bad english)
Code:
First function
function dydt = osc(t,y)
ka1 = 10^6;
ka2 = 0.15*10^6;
kp = 2952;
kd = 0.106*2952;
ks = 10^6;
%y=[C,A,ROH,I,M,Lambda,Mi] <=> y(1,:)=[C] ; y(2,:)=[A]
% y(3,:)=[ROH] ; y(4,:)=[I]
% y(5,:)=[M] ;
% y(6-8,:)=[Lambda] onde: %y(6) - lambda0 ;
y(7) - lambda1 ; y(8) - lambda2
% y(9-11,:)=[Mi] onde: %y(9) - mi0 ; y(10) -
mi1 ; y(11) - mi2
% y(12,:)=[R1] ; y(13;:) = [D1]
j = 10;
syms n
%Variables
dydt(1,1) = - ka1*y(1)*y(3) + ka2*y(4)*y(2) - ka1*y(1)
dydt(2,1) = + ka1*y(1)*y(3) - ka2*y(4)*y(2) + ka1*y(1)
dydt(3,1) = - ka1*y(1)*y(3) + ka2*y(4)*y(2) - ks*y(3)*
dydt(4,1) = - kp*y(5)*y(4) + kd*y(12) + ka1*y(1)*y(3) - ka2*y(4)*y(2)
%Living Chains
dydt(6,1) = + ka1*y(1)*symsum((n^0)*y(9), n, [1 j])
dydt(7,1) = + ka1*y(1)*symsum((n^1)*y(10), n, [1 j])
dydt(8,1) = + ka1*y(1)*symsum((n^2)*y(11), n, [1 j])
%Dormant Chains
dydt(9,1) = - ka1*y(1)*symsum((n^0)*y(9), n, [1 j])
dydt(10,1) = - ka1*y(1)*symsum((n^1)*y(10), n, [1 j]) +
dydt(11,1) = - ka1*y(1)*symsum((n^2)*y(11), n, [1 j])
%R1 e D1
dydt(12,1) = + kp*y(5)*y(4) - kp*y(5)*y(12) + kd*((y(12)+1) - y(12))
dydt(13,1) = - ka1*y(1)*y(13) + ka2*y(2)*y(13) + ks*y(3)*y(12)
end
Second function
function [t,y]= call_osc()
%Tempo
tspan = [0 1];
%Initial conditions
C = 2.582;
A = 3.9*10^3;
ROH = 0.387*10^2;
I = 10^3;
M = 1460.495;
Rn0 = 0;
Rn1 = 0;
Rn2 = 0;
Dn0 = 0;
Dn1 = 0;
Dn2 = 0;
R1 = 1;
D1 = 1;
y0 = [C; A; ROH; I; M; Rn0; Rn1; Rn2; Dn0; Dn1; Dn2; R1; D1];
[t,y] = ode15s(#osc, tspan, y0);
disp(y(:,1))
end