* line 352 of /lib/ddl/database_manager.php: ddl_exception thrown
* line 368 of /lib/ddl/database_manager.php: call to database_manager->load_xmldb_file()
* line 969 of /lib/upgradelib.php: call to database_manager->install_from_xmldb_file()
* line 520 of /lib/upgradelib.php: call to upgrade_plugins_blocks()
* line 1852 of /lib/upgradelib.php: call to upgrade_plugins()
* line 694 of /admin/index.php: call to upgrade_noncore()
