Fatal error when uploading XLSX file "object 'TADA.MultipleOrgDupGroupID' not found"

[JamesBisese]

Describe the bug

A fatal error occurs when trying to 'Run Tests' on data imported using 'Upload dataset'

To Reproduce

Steps to reproduce the behavior:

1. Go to '1. Load'

2. Scroll down to 'Option C: Upload dataset'

3. Click on 'Browse'

4. Select file (attached)
tada_output_ts241223103324.xlsx

-- Note: data successfully loads into TADA Shiny

5. Click on tab '3. Flag'

6. Click on button 'Run Tests'.

7. Error condition occurs. Screen is frozen and application dies

Please include your Water Quality Portal data query inputs from the Load
data tab:

If applicable, include code to reproduce the behavior:

Error: (converted from warning) Error in dplyr::mutate: ℹ In argument: `TADA.MultipleOrgDuplicate = ifelse(is.na(TADA.MultipleOrgDupGroupID), "N", "Y")`.
Caused by error:
! object 'TADA.MultipleOrgDupGroupID' not found

Expected behavior

A clear and concise description of what you expected to happen.

Screenshots

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Additional context

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Reminders for TADA contributors addressing this issue

Bug fixes should include the following work:

• Create or edit the code.

• Document all code using line/inline and/or multi-line/block comments
  to describe what is does.

• Create or edit tests in tests/testthat folder to help prevent and/or
  troubleshoot potential future issues.

• If your code edits impact other functionality in the shiny
  app, ensure those are updated as well.

• Run styler::style_pkg(), devtools::document(), and devtools::check()
  and address any new notes or issues before creating a pull request.