3.0.9: Failed to parse log section

Hi, In v3.0.9, I uncomment the "request" log in radius.log requests = ${logdir}/radiusd-%{%{Virtual-Server}:-DEFAULT}-%Y%m%d.log When running radiusd, it give me error, "radiusd: Error: Failed to parse log {} section". Commenting back the line gives no error. What is the problem? It was OK with v3.0.8. Fu