Hi Kyla,
I’m sorry that you’re running into this issue, but I’ll be happy to help you out.
As a first step, can you drop down to a default environment (all other plugins besides The Events Calendar and Events Calendar Pro disabled and the Twentyseventeen theme enabled) and see if you are still running into this issue? If not, then you’ll want to re-activate your theme and plugins individually to see when the issue reappears. Please make sure to have WP_DEBUG enabled while testing and copy/paste any errors that you see into your reply.
Can you also share your full system info with me and send me a screenshot of what you’re seeing when you try to add a venue?
Finally, please also check for Javascript errors on the page by right-clicking, clicking “Inspect”, and looking in the console while you try to recreate the issue. If you see any errors, please copy/paste them into your reply.
Thanks,
Jennifer