BOM IMPORT LEADS TO 500-INTERNAL SERVER ERROR

https://elecaccnew.cetecerp.com/bomquote/35483/import

trying to import a BOM from a spread sheet.

Step 1 . go to BOM work sheet https://elecaccnew.cetecerp.com/bomquote/35483/view
Step 2. click import BOM
Step 3. search for excel file and click "import file"https://elecaccnew.cetecerp.com/bomquote/35483/import
Step 4. Select from the drop downs what i want each column to represent.
Step 5. click update at the bottom.

500 - internal server error

@ElectricalAccess
Is this happening with any spreadsheet you try to import, and on any part? Or is it a specific sheet/part combination that causes the error?