If you get errors on a Project Script that previously worked after upgrading software versions, the following process will fix the issue by recompiling the Project script and flushing cache.
Example error you may get:
TatSysUtilsLibrary not registered.
Process to correct:
Open issql.exe.
SELECT * FROM SCRIPT_PROJECT_FILES2;
DELETE FROM SCRIPT_PROJECT_FILES2;
Execute the Reload All Settings process from the main screen interface.