what is this ?

[Freeradius Mail List]

Have some error in freeradius log:

Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:55 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:57 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:57 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:57 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0
Fri Jan 30 03:32:57 2009 : Info: rlm_sql (sql): There are no DB handles 
to use! skipped 0, tried to connect 0

Can anybody talk what is this ? What is the reason and how to solve ?
Thx.