Sum/Average/Median/Variance Not Working

I keep getting an error when I try to calculate the sum of a column in Looker. The original data is in a Google Sheet. Everything works for minimum and maximum, but I get an error with any stat that requires addition, subtraction, division, or multiplication.  The values are numbers, and there are no null values.

Error Message: Error ID: 8f36a76e

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Is the error message actually blank?

Can you share more details about the column?