Hidden Cells

CFO Scoreboard scans the entire document for data, in your case the Balance Sheet has two columns that are hidden. I've highlighted where this occurs in the attachment. Once those hidden cells are deleted, you should be able to upload your documents successfully.

CFO Scoreboard scans the entire document for data, in your case the Balance Sheet had three sheets with overlapping months. To fix this, I simply trimmed two sheets so that only one set of data remained. 

CFO Scoreboard scans the entire document for data, in your case the Income Statement had a row (125) that was hidden with the account name Other Expenses.