Hi Daniel,
This looks like the categories layout. If that's the case, you can disable the following setting to disable the 'Active Authors' column.
Settings>Views>Categories Layout>Show Authors(http://take.ms/gHdHb)

it is disabled. See attachment.

Hey Daniel,
Do you have a 'All Categories' menu item for EasyBlog? If you do, can you check if the show authors setting is enabled there?
If it is already disabled, can you provide us your backend and ftp access to the site having this issue so we can check this out? Thanks.

i have updated the login dates.
Please have a look in admin.

Hey Daniel,
I checked your menu item and it seems to be set to 'Show'(http://take.ms/f740P). This will ignore the setting in the global categories view setting. I have helped you set to 'Inherit from default settings' so now it will follow the settings from EasyBlog categories view settings.

ok. Thanks a lot! it works now.

Hey Daniel,

You are most welcome. Glad to hear that your issue has been resolved now.
Regards.