Madhusudan@WEN Solutions on "Can not customize any themes"

I can no longer customize or preview any themes. When I attempt to preview or customize, the login prompt appears with each attempt. How can I fix this? Thanks! http://www.pinkcurlers.com

Hello pinkurlers,
It seems something might be going wrong on your site.
Go through following troubleshooting steps:
1.Clear browser's all cache and cookies then you should consider trying another browser.
2.Try to deactive all plugins to see if that resolves the issue.
3. Lastly, you can try switch to twentysixteen theme to check if there is any problem with it.

Regards!!