Hope someone can help me. I’ve done one successful upgrade to 2.7 today, but the second has gone a bit wrong. I’m getting this error:
Warning: call_user_func_array() [function.call-user-func-array]: First argumented is expected to be a valid callback, ‘_show_post_preview’ was given in /home/delta9/domains/itsastitchup.co.uk/public_html/blog/wp-includes/plugin.php on line 311
I can see my admin site (with errors) but nothing on the public site:
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