Creating of new users has been disabled. You can create event entry without any need to create ORIS user before. Just go to the event page and create one-time entry.
If you are a foreign club that competes in CZE regularly then you can ask for a permanent account. Please send email to oris@orientacnisporty.cz. Following details should be mentioned in the email: club website url or link to club results, contact person (admin) - first name, last name, email, phone