Russian Moodle

Включил в config.php отладку. Вот такая ошибка:

Error reading from database

More information about this error

×Debug info: SQLState: 42000
Error Code: 448
Message: [Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Недопустимые параметры сортировки"utf8mb4_unicode_ci".

SELECT 'x' FROM mdl_user WHERE email COLLATE utf8mb4_unicode_ci = N'sav@grdn.ru' AND mnethostid = '1' AND id <> '2' ORDER BY 1 OFFSET 0 ROWS FETCH NEXT 1 ROWS ONLY
[array (
0 => 'sav@grdn.ru',
1 => '1',
2 => 2,
)]
Error code: dmlreadexception
×Stack trace:
line 486 of \lib\dml\moodle_database.php: dml_read_exception thrown
line 324 of \lib\dml\sqlsrv_native_moodle_database.php: call to moodle_database->query_end()
line 431 of \lib\dml\sqlsrv_native_moodle_database.php: call to sqlsrv_native_moodle_database->query_end()
line 900 of \lib\dml\sqlsrv_native_moodle_database.php: call to sqlsrv_native_moodle_database->do_query()
line 2002 of \lib\dml\moodle_database.php: call to sqlsrv_native_moodle_database->get_recordset_sql()
line 1987 of \lib\dml\moodle_database.php: call to moodle_database->record_exists_sql()
line 310 of \user\editadvanced_form.php: call to moodle_database->record_exists_select()
line 615 of \lib\formslib.php: call to user_editadvanced_form->validation()
line 551 of \lib\formslib.php: call to moodleform->validate_defined_fields()
line 661 of \lib\formslib.php: call to moodleform->is_validated()
line 171 of \user\editadvanced.php: call to moodleform->get_data()