A few common causes: non-numeric or missing values in the P-Value or Fold Change columns (for example, a “.” or blank cell instead of a number) will cause a failure; make sure every row has a valid numeric value in both columns. If you’re submitting via the API/batch client and get a “submitted successfully” response but the analysis later shows as not found, this usually traces back to the same kind of malformed input row. Contact support with your file if the cause isn’t obvious from the error message.