Unknown Error in data check processing

Hello. I uploaded the LCMS data in the types and formats specified below, but encountered an issue with the message “checking data content …failed. Unknown Error Occurred,” which prevents me from proceeding with the analysis. I am using the same data and upload format that successfully completed the analysis many times before the latest update. I am at a loss for how to resolve this problem. Could you please help me with a solution?

Module:Satatistical Analysis [one factor]
file:A plain text file (.csv)
Data Type:Peak intensities
Format:Samples in columns (paired)
Data processing information: Checking data content …failed. Unknown Error Occurred