Why do I get an error on playground?

Answer 1

I thought the question is linked like comments.. Sorry!

Answer 2

hello, could you please explain your question more? like what type of error? what programming language? maybe share the code? stuff like that.
and you might want to read these guidelines
https://www.sololearn.com/Discuss/1316935/
and this blog post about getting help from the community
https://www.sololearn.com/Blog/38/