Good afternoon Angie and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
Our best demo of our different plugins can be found here:Â http://wpshindig.com/events/
I am sorry to hear you are having difficulties processing the Payment via Paypal.
Unfortunately, this sometimes happens.
Could you expand a little on the type of error message you are getting ?
Alternatively, have you tried paying using Stripe instead of Paypal ?
Best regards,
Geoff B.