LDAPRC value is returning -1 instead of 0 in LDAP COMMON_BIND

We are getting the error message while running the report RSSODSX2.

We analyzed that LDAPRC value is returning -1 instead of 0 in LDAP

COMMON_BIND.

We are facing similar issue with our Z program i.e

Program :ZBW_PERS_DATA_GIDARE Variant : USERERGAENZUNG

Error:

Fehler 4 bei LDAP_SIMPLEBIND

Can you please help in finding the cause for LDAPRC value returning -1 instead of 0.