[OpenSER-Users] Error when using avp_db_load: "avpops:dbrow2avp: wrong field types in dbrow"

Hi all, I'm trying to load some attributes from DB to an avp and check if the value is greater than 0 (zero). I'm trying to limit the max sessions per user@domain. But when I execute "avp_db_load(..)" I get the error: "avpops:dbrow2avp: wrong field types in dbrow". I'm using unixodbc with oracle as DBRMs. The table DDL is: UUID(VARCHAR2), USERNAME(VARCHAR2), DOMAIN(VARCHAR2), ATTRIBUTE(VARCHAR2), VALUE(VARCHAR2), TYPE(NUMBER) Follow bellow the source: if (method == "REGISTER") { if ( avp_db_load("$fu","$avp(s:maxsessions)/avp_user_attributes") && avp_check("$avp(s:maxsessions)", "gt/0/g") ) { save("location") ; return; } else { sl_send_reply("503", "Service Unavailable"); return; } } I've checked the AVP source and the field types seems to be ok. I don't what to do. Thanks in advance, Noel ps: Sorry about the poor English