I have a strange behaviour when configuring ACC module to put CDRs

It must be as simple as this:

modparam("acc", "cdr_enable", 1)

But got this error:

feb 19 09:26:14 kamailio /usr/local/sbin/kamailio[23712]: ERROR: acc [acc_mod.c:604]: mod_init(): failed to init cdr generation

feb 19 09:26:14 kamailio /usr/local/sbin/kamailio[23712]: ERROR: <core> [sr_module.c:962]: init_mod(): Error while initializing module acc (/usr/local/lib64/kamailio/modules/acc.so)

I have read documentation and seems ok. Tables in databases are created and ALTER commands applied. IM getting actually ACC registers on acc table, but could not active cdrs for acc.

What am i missing?