I encounter a problem as installing a plugin of assignfeedback_pdf. Can you help me?
The information on the error:
Error code: ddlxmlfileerror
- line 354 of \lib\ddl\database_manager.php: ddl_exception thrown
- line 370 of \lib\ddl\database_manager.php: call to database_manager->load_xmldb_file()
- line 654 of \lib\upgradelib.php: call to database_manager->install_from_xmldb_file()
- line 1917 of \lib\upgradelib.php: call to upgrade_plugins()
- line 711 of \admin\index.php: call to upgrade_noncore()