Mysql database failed in mariadb

after recent mariadb update i am unable to create database login.

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’, ‘wdc’, ‘’, ‘’, ‘’, ‘’) failed : Field ‘authentication_string’ doesn’t have a default value at /usr/share/webmin/web-lib-funcs.pl line 1477.

OS : Ubuntu Linux 16.04.5

Daatabase : MariaDB-10.2.27 and 10.3.18

virtualmin: 6.07

existing server works fine with database even backup feature can dump mysql properly

Thanks
RON

https://github.com/virtualmin/virtualmin-gpl/commit/be9984c0d6bd2e6ec84d1fb9e14dc01cad4b64bd

https://github.com/virtualmin/virtualmin-gpl/commit/bcc1ed6ad138ae5cae52279ee2713310c464d022

maybe?