Hey Jared,
Thank you for reaching out to us!
To get started, could you please update both The Events Calendar and Events Calendar PRO to latest versions (4.6.12 and 4.4.24.2, respectively)?
After that, please access your Dashboard again 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 help you with the next steps.
Cheers,
Patricia