fix: stacked error messages.

[qascade]

As our major focus was on streaming feature to start. Not much care was taken while writing err messages. Need to modify err messages to only show the direct cause of the err.

[katarzynakawala]

Hi! Could I work on it?

[qascade]

@katarzynakawala Sure, assigning this to you. If you have any questions do let me know. I would recommend raising a PR after 1 Oct, if you are participating in Hacktoberfest. I posted this issue because I was seeing nested err messages and it would better to implement errors from the user perspective rather than the developer perspective. Currently the errors are lying around everywhere to help debug stuff which is not an ideal behaviour.

[qascade]

You can also try using a logger to help developers debug

[qascade]

@katarzynakawala You can also look at modifying message outputs to look better.

[katarzynakawala]

#59