LDAP cannot search

Hi all. We lost the ability of using LDAP and looking at the logs we get the following:

[root@01 pro]# ./pro.py ldapsync --test
[03/15/2022 18:58:48] [DEBUG] Try to connect ldap server ldap://192.168.210.94/.
[03/15/2022 18:58:48] [DEBUG] Connect ldap server [ldap://192.168.210.94/] success with user_dn [
@.local] password [].
[03/15/2022 18:58:48] [DEBUG] Try to search login attribute [mail].
[03/15/2022 18:58:48] [DEBUG] Search result from dn [dc=
,dc=local], and try to print ten records:
[03/15/2022 18:58:48] [WARNING] Search failed for base dn(dc=
,dc=local), filter((mail=)) on server ldap://192.168.210.94/ error: {‘desc’: ‘Operations error’, ‘info’: ‘000004DC: LdapErr: DSID-0C090A69, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, v4563’}
[03/15/2022 18:58:48] [DEBUG] Search failed, please check whether dn [dc=
,dc=local] is valid.
[03/15/2022 18:58:48] [DEBUG] LDAP group sync is enabled, try to search groups using group object class [group].
[03/15/2022 18:58:48] [DEBUG] Search result from dn [dc=
,dc=local], and try to print ten records:
[03/15/2022 19:00:55] [WARNING] Search failed for base dn(dc=
,dc=local), filter((objectClass=group)) on server ldap://192.168.210.94/ error: {‘desc’: ‘Operations error’, ‘info’: ‘000004DC: LdapErr: DSID-0C090A5C, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, v4563’}
[03/15/2022 19:00:55] [DEBUG] Search failed, please check whether dn [dc=
*,dc=local] is valid.

Any idea what could be wrong?

Thanks