The SHRINE qep encountered a problem with one of its databases.
A SHRINE qep uses a database for operations and for providing audit logs. Some problem occurred when SHRINE attempted to use the database.
If you are a user, supply all details to your site admin to help resolve the issue.
If you are the qep admin, examine the details to help determine what is wrong. Frequently this problem will be caused by problems in the configuration or problems in the database schema.
A java.util.concurrent.TimeoutException rarely indicates a timeout. Connectivity problems often manifest as TimeoutExceptions; SHRINE gives up after a generous timeout. More likely the database is unavailable on the network as configured. Check that the configuration is correct. Check that the database is reachable from the SHRINE host.
A org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot create JDBC driver of class 'oracle.jdbc.OracleDriver' for connect URL ... may indicate that the database URL has a syntax error or is incomplete.