How to deal with Soft 404 errors?

Hi guys,

I hope this is the right forum to post this. I keep getting some Soft 404 errors, usually from tags on the website. We use a custom skin that was built from the ground up for us. I was wondering if I need to deal with them somehow or just ignore them.

Thanks!

Can you please provide your Apache error log for me? I will maybe be able to identify your issue from that...