Typo in age_calculator.helper_functions.inc file.

@Shashwat Purav,Thanks for the patch, but there are some more typos in the age_calculator.helper_functions.inc file which needs to be corrected.

  // If the configrations are not saved by admin, we shall use the default one.

Here, Spelling of "configrations" should be "Configurations"

// Fetching the defult configuration.

Here, Spelling of "defult" should be "default"

Make changes as said by @krina.addweb . Please review

@shruti1803, I think your corrections are right but your patch not applied correctly & throws:
PFA

Krina@Krina-PC MINGW32 ~/downloads/age_calculator
$ patch < typo_in-2853754-4.patch.txt
patching file age_calculator.helper_functions.inc
Hunk #1 FAILED at 6 (different line endings).
Hunk #2 FAILED at 21 (different line endings).
2 out of 2 hunks FAILED -- saving rejects to file age_calculator.helper_functions.inc.rej

@krina.addweb : For this issue #2 patch is perfect. Because the changes you have mention for that one issue is created and added the patch here https://www.drupal.org/node/2826827.

So no need to consider the #4 changes for this issue.

@dishabhadra, Yes you were right #2 works well, thanks for the referred post.

Thanks for the #2 @Shashwat Purav.
Have Committed to new 8.x-2.x branch, Will be creating the release soon.

Thank you for the contribution guys.
I have added a new release that fixes this issue.
Here is 8.x-2.0 release: https://www.drupal.org/project/age_calculator/releases/8.x-2.0.