Answer 1

If you have a problem with the app crashing, please tap the … menu in the corner and send feedback to SoloLearn, or send an email to [e-mail].
Explain your device specs and what action(s) you were doing before crashes occurred, to help them resolve the issue in another update.

By the way, welcome to the SoloLearn Q&A! Read these threads to learn about the Q&A post guidelines. Thank you!
https://www.sololearn.com/discuss/321242/?ref=app
https://www.sololearn.com/Discuss/593497/?ref=app
https://www.sololearn.com/Discuss/333866/?ref=app