blog thumbnails all have wrong link

Hello,

I bought HighEnd a good week ago, and created a site which was running very well until yesterday morning. HighEnd clashed with the WooCommerce EU VAT plugin, and my site was gone (blank screen).

I managed to get my homepage and shop etc up again by removing WooCommerce and HighEnd and reinstalling them again, but my blog page (http://www.straight-grain.com/theblog) still has problems. The main blog page (grid) shows the thumbnails and excerpts again, but for some reason, all thumbnails link up to my former main blog page (www.straight-grain.com/blog) instead of to the blogpost at hand. I removed all posts and reimported them (from my previous (blogspot) blog) but the problem persists. Also if I write a new post, the thumbnail links up to /blog. Even if I open a post in my Dashboard, and then click ‘View’, it links up to this page.

How can I solve this? Thanks in advance!