Acounting problem with SQL and detail files

Hi All, We noticed an issue on our FreeRADIUS Version 2.1.12 on a CentOS 6.3 kernel 2.6.32-279.2.1.el6.x86_64. Our FreeRADIUS is connected to a database for the accounting queries. It is also configured to save the same accounting information in the detail files. We had a database connection problem (Error: rlm_sql (sql): There are no DB handles to use! skipped 0, tried to connect 0). We were surprised that during this problem the accounting information that cannot be passed to the database was not written in the detail files. Thanks for your help. AL PS: sqltrace is not a solution for us.