[Samba] After updating

[sandy.napoles at eccmg.cupet.cu]

Hello list, today I updated my samba domain to version 4.9, after everything went well, I ran the command ./samba-tool dbcheck and the error is the following, however everything else works perfect ... that could be happening????
./samba-tool dbcheck
Checking 903 objects
ERROR(): uncaught exception - 'ascii' codec can't encode character u'xe1' in position 313: ordinal not in range(128)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/__init__.py", line 177, in _run
 return self.run(*args, **kwargs)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/netcmd/dbcheck.py", line 157, in run
 controls=controls, attrs=attrs)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py", line 221, in check_database
 error_count += self.check_object(object.dn, attrs=attrs)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py", line 2230, in check_object
 error_count += self.check_dn(obj, attrname, syntax_oid)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py", line 1139, in check_dn
 self.check_duplicate_links(obj, attrname, syntax_oid, linkID, reverse_link_name)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/dbchecker.py", line 947, in check_duplicate_links
 dsdb_dn = dsdb_Dn(self.samdb, val.decode('utf8'), forward_syntax)
 File "/usr/local/samba/lib/python2.7/site-packages/samba/common.py", line 101, in __init__
 self.dn = ldb.Dn(samdb, self.dnstring)