Hey Crystal,
Thank you for reaching out to us!
Could you please confirm that both The Events Calendar and Events Calendar PRO are up to date? The latest versions are 4.6.4 and 4.4.19. After that, please access your Dashboard and head over to Settings -> Permalinks for a permalink flush (no need to change anything, just visit the permalinks page: WordPress will automatically flush your permalinks once you visit it). Be sure to clear your site cache and browser cache after this change.
Does it help you to solve the problem? If the issue persists, please let me know and I’ll be happy to further investigate your case.
Cheers,
Patricia