When I use an online site for analysis, I report an error

Hello, could someone solve my problem?
When I used online galaxy today, I found that the website was updated, and the previous historical data was no longer displayed. When I re-uploaded the data, the display error occurred:ERROR:galaxy.datatypes.data:Unable to count lines in file /export/galaxy-central/database/files/011/dataset_11106.dat,In the step of ‘format data’.I 'm still a beginner unable to figure out why.

Hello @rongcao ,
Can you try again please? We were in the middle of Galaxy maintenance which might be the cause of the issue.