MyBB Community Forums

The reason why I mentioned about checking your cPanel and the type of error pages it's set-up to serve by default. Is because a long time ago, I used .html error pages instead of .shtml ones. I was having issues at the time with the custom 404 page not always working correctly. In the end I traced it down to what I said above, I should have been using .shtml error pages instead, because that's what my server was configured to serve properly as 404, 403 e.t.c

I don't have any custom error pages with my webhost.

So in your cPanel (if you use it), do you not see an option called "Error Pages", then when you click it your shown settings like my two images showed above in my cPanel settings.

Setting shown below your looking for.

[attachment=21992]

Another useful link also: http://lynnepope.net/creating-a-custom-4...ith-cpanel
And another to show you some templates for using: http://sonic.net/errors/text.shtml

As said, it doesn't provide error pages, that's why I need to make google seo work.

On your plugin page go to google seo and print screen what it says there.

Here it is:

Well it tells you right there what is wrong either:
1: you haven't got them in .htaccess which i'm sure you have.
2: The .htaccess isn't in your forum root
3: you've not renamed htaccess.txt to .htaccess
the reason it is not working is because it can not find them lines in the .htaccess file.

Problem is if I rename the htaccess file I get Internal Server Error when trying to load the site, so I can't rename it to .htaccess

Delete your .htaccess and reupload a new copy from the Google SEO download, you've probably corrupted it.

Same result.