WebMaster Tools Crawl Errors (Pic)

[Staccs]

The site is running Wordpress, so I assume this is a permalinks problem? How do I go about fixing this?

Permalinks are currently set as a custom structure "/%postname%/".

 

[Staccs]

^ Bump.

 

[imkazu]

you need to do a 301 redirect
301 .htaccess Redirect

your rules would looks something like
Redirect 301 /error-page-on-gwt.php yourcorrect-permalinks.php
.
.
.

 

[Staccs]

you need to do a 301 redirect
301 .htaccess Redirect

your rules would looks something like
Redirect 301 /error-page-on-gwt.php yourcorrect-permalinks.php
.
.
.

I understand why that would work if I had recently changed the permalinks, but they have been set since I first installed Wordpress, and all the posts were added after the permalinks were changed.

They seem to be being created incorrectly?

 

[Staccs]

Still having problems with this. Even new posts are getting these crawl errors.

 

[TBoneAZ]

I would try to change your permalinks to default and then change them back to your current. Probably want to delete your .htaccess file too

 

[-Matt-]

delete your .htaccess file then recreate it by logging into wordpress and going to setting>url structure and resubmitting it.