Hi Joanna!
Thanks for getting in touch with us. Let me help you troubleshoot that issue.
You should be able to see an “Add new ticket” button below those options. This can be related to a theme or plugin conflict, so to narrow the problem down please go through the steps provided in the testing for conflicts guide > https://theeventscalendar.com/knowledgebase/testing-for-conflicts/.
I would first start by switching to a default theme like twenty seventeen and see if it changes anything. We suggest you setup a dev/staging site so you can make all these tests without disrupting the live site.
Please let us know what you find in the process and if you have any questions about it.
Thanks,
Victor