upload error

[ARW-UBT]

Hello,
I have selected a tab-delimited count table and a tab-delimited metadata file for upload to your web instance of DEBrowser. The status bar below each selected files states 'upload complete' for both files, but there is no upload summary. If I press the 'Upload' button then I receive an error message stating that I was diconnedted from server and I have to 'Reload'
See attached screenshots:

Any suggestion how to proceed?

[nephantes]

Iin the first column, you need to write genename. The number of columns in the header and table has to be the same.
Other thing, make sure the delimiters are consistent in all the file. If you chose tsv, it has to be tab separated everywhere. If there is space somewhere it won't work. If you attach some portion of your data, I can help you to find the problem in your table.