Clarity sends a SQL0204 alert when business functions lose access to the tables they are referencing. There are a couple of ways to troubleshoot the issue and keep JDE running smoothly.
SQL0204 - &1 in &2 type *&3 not found typically appears after an upgrade. Tables can be lost in the upgrade process leaving business functions without a point of reference. When this happens, services do not start cleanly. You may also encounter issues with the overall performance of JDE.
To troubleshoot, check the Oracle Update Center for any ESUs that may have bugs associated with them. If your application includes custom business functions, a developer may need to remove references to non-existing custom tables.