PenciDesign Supporter replied
Hi,
1. The Twitter Feed doesn't show because the plugin iubenda blocks your connection to the Twitter server on your site. Just go to the plugin settings, and uncheck on Automatically block scripts detected by the plugin
2. Your sidebar content displays properly on my devices. Please make sure you're clear all your cache before test again. The Soledad Theme doesn't auto-block any element on specific devices.
Best Regards,
PenciDesign.