Answer 1

Sololearn has issues with connectivity some times. You can try rebooting your device or uninstalling and reinstalling the app. If it doesn't solve your issue, contact [e-mail].

If you want to learn, you can also use Sololearn's website. www.sololearn.com

Answer 2

It's mostly probable that actually sololearn servers have more intensive traffic than usually, due to the almost world lock-down ^^