Join problem 4.4-1

UCS - Univention Corporate Server
1

Master,Slave1,Slave2,Slave3,Slave4,Backup UCS: 4.4-1 errata251

I cannot join 2 different slave, same error:
Running 92univention-management-console-web-server.inst failed (exitcode: 3)

curl: (51) SSL: no alternative certificate subject name matches target host name 'ucs-sso.domain

How Can I fix it?

2

Now 92univention-management-console-web-server.inst done but
96univention-samba4 and 98univention-samba4-dns pending.
log.samba:

[2019/09/09 09:24:38.921833,  0, pid=3466] ../../source4/rpc_server/common/forward.c:55(dcesrv_irpc_forward_callback)
  IRPC callback failed for DsReplicaSync - NT_STATUS_OBJECT_NAME_NOT_FOUND