OpenLDAP cannot connect saslBind - c++

Question

My workstation has Ubuntu OS 18.04. I use the ldapcpp library from OpenLDAP-2.4.47 in my Qt project for authorization on MS ActiveDirectory server. The code works fine.
LDAPControlSet* ctrls=new LDAPControlSet;
ctrls->add(LDAPCtrl(LDAP_CONTROL_MANAGEDSAIT));
cons->setServerControls(ctrls);
LDAPConnection *lc=new LDAPConnection("dc.mydomen.local",389);
lc->setConstraints(cons);
lc->bind("CN=username,OU=Programmer,OU=IVO,DC=mydomen,DC=local", "password",cons);
My workstation is in the domain.
username#kubuntuit01:~$ sudo net ads testjoin
Join is OK
username#kubuntuit01:~$ sudo net ads keytab list
Vno Type Principal
2 des-cbc-crc HOST/kubuntuit01.mydomen.local#MYDOMEN.LOCAL
2 des-cbc-crc HOST/KUBUNTUIT01#MYDOMEN.LOCAL
2 des-cbc-md5 HOST/kubuntuit01.mydomen.local#MYDOMEN.LOCAL
2 des-cbc-md5 HOST/KUBUNTUIT01#MYDOMEN.LOCAL
2 aes128-cts-hmac-sha1-96 HOST/kubuntuit01.mydomen.local#MYDOMEN.LOCAL
2 aes128-cts-hmac-sha1-96 HOST/KUBUNTUIT01#MYDOMEN.LOCAL
2 aes256-cts-hmac-sha1-96 HOST/kubuntuit01.mydomen.local#MYDOMEN.LOCAL
2 aes256-cts-hmac-sha1-96 HOST/KUBUNTUIT01#MYDOMEN.LOCAL
2 arcfour-hmac-md5 HOST/kubuntuit01.mydomen.local#MYDOMEN.LOCAL
2 arcfour-hmac-md5 HOST/KUBUNTUIT01#MYDOMEN.LOCAL
But i cannot connect using the saslbind method using the code:
LDAPAsynConnection * sas;
sas = new LDAPAsynConnection();
sas->init("dc.mydomen.local",389);
sas->saslBind("KERBEROS","uid=HOST/KUBUNTUIT01,cn=VIVEYA.LOCAL,cn=gssapi,cn=auth",cons);
or
sas->saslBind("GSSAPI","uid=HOST/KUBUNTUIT01,cn=VIVEYA.LOCAL,cn=gssapi,cn=auth",cons);
In debug mode in the debugger, the message string contains the text: "80090308: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 57, v1db1". I tried different authorization options, I don’t know what to try next.
thank