Dear Community,
I'm having a problem upgrading my confluence server instance. Starting at version 5.8.4 I always encounter the following issue:
"Upgrade failed. Please consult the logs for details. You will need to fix these problems, restore your database and confluence home directory to the pre upgrade state. Then retry the upgrade. Upgrade error message: upgrade task
com.atlassian.confluence.upgrade.upgradetask.DropSpaceGroupTablesUpgradeTask@2e08fbf failed during the SCHEMA_UPGRADE phase to: null"
I tried the upgrade Process with 3 different Versions of Confluence 6.X ... and I'm always stuck with this error. I tried this workaround, but I'm not getting the expected response: https://confluence.atlassian.com/confkb/upgrading-to-confluence-5-9-x-or-5-10-x-fails-with-error-failed-during-the-schema_upgrade-phase-due-to-null-794212749.html
Can you please help me with my request?