Hi~
I am getting these errors in my reports:

component/content/frontpage
component/slicomments/?task=comments.reply&name=...

Also these but I am not sure if they are related:
?option=com_content&view=frontpage
?option=com_content&view=frontpage&Itemid=60

I don't understand what exactly are this errors. where are they showing?

Thanks for your reply. In webmaster tools

I am getting a lot of these errors. "Server errors" in WMT all the comments have them like: mysite.com/component/slicomments/?task=comments.reply&name=...(users name and numbers)

They are 500 server errors?