Hey @Juan,
I would recommend deleting these three plugins:
• The Events Calendar
• Events Calendar Pro
• Filter Bar
Delete all three and then have another look at your site.
If issues persist on your site after all three of these plugins are deleted, then the issues remaining are related to your theme and other plugins because our code will be gone and thus not affecting things any longer.
Start with deleting ALL THREE of these plugins and let us know what you find—we can take another look at the state of things from there!
Sincerely,
George