Fix haplochecker

[Tayazseven]

Dear Maintainers,

Please accept this PR that addresses the following issues:

Testing Done:

• Describe what testing you did

Reminders for contributors (REQUIRED!):

• Your PR's title must reference an issue on GitHub Issues. For example, a PR called "[#issue-number] My Amazing PR" would close issue #issue-number. Please open a new issue if required!
• Please squash your commits when possible (i.e. after PR run git rebase develop and resolve all conflicts on the PR branch)

• Write a good git commit message. Summarized as follows:

  • Separate subject from body with a blank line
  • Limit the subject line to 50 characters
  • Do not end the subject line with a period
  • Use the imperative mood in the subject line (add, not adding)
  • Wrap the body at 72 characters
  • Use the body to explain what and why vs. how