Hi Darshan,
Thanks for getting in touch!
I’d love to help you out — but first, will you please log into your account so we can continue this conversation in our technical support forums? We use this pre-sales channel to answer questions about purchasing our plugins and provide technical support for license holders in our premium support forum. I will go ahead and move this thread there.
If you do not happen to have a license, you are totally welcome to post over on our WordPress.org forum. We do a support pass there once a week and would be happy to help you there on our next pass.
In the meantime, you might find the suggestion in this thread helpful:
https://theeventscalendar.com/support/forums/topic/how-do-i-change-the-sidebar/
Cheers!
Geoff