Error in raw data processing (failed current status) - microbiomeanalyst

there seem to have a problem with the raw data processing.
In Raw Sequencing Data Upload step, sequencing data (obtained from public data, Single-ended) were successfully uploaded.
Then, in Parameter Settings step, 16S and silva were chosen as sequence type and Taxonomy reference databases, respectively. The remaining settings used default values.
Next, in Job status view, my job was immediately failed.

It worked when I used my own sequencing data, but this happened when I used public data.
What’s the problem?

thank you for your help