Theme change what to do ??

I changed my theme of blogger 3 days back and all my visit stats are goes down...

I have to do anything or it recovered automatically ??

please suggest me what to do.

Thanks everyone

Changing the theme of an active site is a big step to take. You should follow some steps before and after changing the theme to maintain the traffic and avoid data loss.
Check the working of your plugins and all the functionalities.
Check the working of your site in different browsers.
Turn Off the maintenance mode.
Test the page loading time and speed of your site.
If your theme is not user-friendly it may increase the bouncing rate so check it.
Ask for feedback from the users to make changes accordingly.