Mart server does not upgrade. The m9version table shows the mart server to be at a lower version and not upgraded, e.g. 9.6, even after the upgrade was attempted using the mart configure window. When using the mart configure window, the mart server responds 'Failed to upgrade the Mart Database'. Or 'The Mart database is connected successfully'.
When upgrading from a version prior to 9.8 version to a later version of the mart server you should first upgrade to 9.8 mart server as an intermediate step and then upgrade to the later version.
Please restore your mart server database to the 9.6 or earlier version and first upgrade to 9.8 and then the later version.
Also, when running the mart configure window to update the database please make sure that the mart server service (or server) is stopped while performing the upgrade.