i update maria-db to v 10.3 using command (Putty)
Setting Up Virtual Server
In domain gaga1.ga
Creating administration group gaga1 ..
.. done
Creating administration user gaga1 ..
.. done
Creating aliases for administration user .. .. done
Adding administration user to groups .. .. done
Creating home directory .. .. done
Creating mailbox for administration user .. .. done
Adding new DNS zone .. .. done
Adding to email domains list .. .. done
Adding default mail aliases .. .. done
Adding new virtual website .. .. done
Adding webserver user apache to server's group .. .. done
Performing other Apache configuration .. .. done
Setting up scheduled Webalizer reporting .. .. done
Creating SSL certificate and private key .. .. done
Adding new SSL virtual website .. .. done
Setting up log file rotation .. .. done
Creating MySQL login .. .. MySQL database failed! : mysql::execute_sql_logged failed : SQL insert into user (host, user, ssl_type, ssl_cipher, x509_issuer, x509_subject) values ('localhost', 'gaga1', '', '', '', '') failed : Field 'authentication_string' doesn't have a default value at /usr/libexec/webmin/web-lib-funcs.pl line 1478.
Adding DAV directives to website configuration .. .. done
Adding DAV account for server administrator .. .. done
Creating Webmin user .. .. done
Re-starting DNS server .. .. done
Applying web server configuration .. .. done
Re-starting Webmin .. .. done
Re-starting Usermin .. .. done
Re-loading Webmin .. .. done
Saving server details .. .. done
There are more people affected by this problem! See this link!
https://www.virtualmin.com/node/64694#comment-808676