View Compilation Error

0_0_24736259_4786.cpp: In function 'LL Lucas(LL, LL, LL)':
0_0_24736259_4786.cpp:31:67: error: too few arguments to function 'LL mul(LL, LL, LL)'
  return mul(Lucas(n / MOD, m / MOD, MOD), C(n % MOD, m % MOD, MOD));
                                                                   ^
0_0_24736259_4786.cpp:17:4: note: declared here
 LL mul(LL a, LL b, LL MOD) {
    ^