[JIRAALIGN-1474] Deleting child columns in Kanban boards throws an internal server error

Issue Summary

When attempting to delete Child Columns on a Kanban board, the user is met with a "500 Internal Server Error"

This leaves the user with no good way to remove the columns. They either have to:

1. Delete the Board and start over
2. Click "Undo" at the Top most level...but that ends up clearing every column already set up.

This can be reproduced on https://alignsupport.agilecraft.com

Steps to Reproduce

1. Log in to Jira Align
2. Navigate to Kanban Boards
3. Select a Kanban Board and click "View" - In my Reproducer, I selected the "Team Batman" board.
4. While on the page for the Kanban Board, Click "Board Setup".
5. Add a Column if one doesn't exist already.
6. Underneath the cloumn, click the "add column" icon. This should create a new set of child columns.
7. Underneath one of the new Child columns, click "add column" again. This should create yet another set of child columns, 'grandchild' columns, if you will.
8. Click the Trash Can icon on one of the grandchild columns.
9. At the prompt, click 'Yes delete it'

Expected Results

Child column deletes

Actual Results

500 internal server error.
Screenshot from developer tools:

On Splunk, this gets logged during the same time frame as the 500 for affected customers:

{ [-]
   ASP_function: Error.asp
   ErrorId: 2835
   PageName: Test Kanban
   correlationid: 2BPiFQLIf+2dUwqyl9c2s7al3adgPAu7Vt4luhSHioM=
   customer_db: XXXXX
   error_aspcode:
   error_aspdescription:
   error_category: Microsoft SQL Server Native Client 11.0
   error_column: -1
   error_description: Incorrect syntax near 'setLastModifiedDate'.
   error_file: /OOFunctionsSql.asp
   error_line: 303
   error_number: -2147217900
   error_source:
   log_type: exception
   logfrom_location: Website-ASP
   timestamp: 2020-05-06T14:29:42.114000-04:00
   url: https://xxxxxx.agilecraft.com:443/L_BoardEdit.asp
   urlverb: POST
   user: 346
   version: 10.69.0.4592
}

Workaround

Currently there is no known workaround for this behavior aside from deleting the board and starting over or undoing any columns as mentioned above. Either way, neither of these workarounds are ideal.