Trying to understand an error message

Hello all,

I have written an application which uses OpenLDAP and I keep receiving this error message: "sasl.c:75: ldap_sasl_bind: Assertion `( (ld)->ld_options.ldo_valid == 0x2 )' failed."

The code at this position says the following: "assert( LDAP_VALID( ld ) );"

My application creates LDAP structures (using ldap_init) and re-uses these structures whenever possible so that the least number of LDAP binds have to done. Is there anything I need to do after an LDAP operation has finished or maybe do I have to unbind at some point to make sure the LDAP structure remains in a valid state? I would be happy to receive any insight into this.

Regards, Khaled