KB-1988 Users are unable to access phpMyAdmin due to missing authentication token

Symptoms

Users are unable to access phpMyAdmin and the following error is printed in the tomcat-stdOut.log file located in the <APPIAN_HOME>/logs directory: 

ERROR com.appiancorp.common.config.AbstractConfiguration - Error decrypting conf.password.PhpMyAdmin.USER_BASED_LOGIN_TOKEN. Reset system configuration passwords using conf/passwords.properties to fix this issue. Returning null. com.appiancorp.suiteapi.common.exceptions.AppianException: Error decrypting configuration value. (APNX-1-4210-002)
com.appiancorp.suiteapi.common.exceptions.AppianException: Error decrypting configuration value. (APNX-1-4210-002)
...
Caused by: java.lang.IllegalStateException: Missing authentication token.

Cause

When the user session times out, the phpMyAdmin authentication token also expires. The idle session timeout value is configured on the Appian Authentication page of the Administration Console.

Action

The affected user should log out and log back in to start a new user session.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: September 2019