[Plugin: Yet Another Photoblog] Problem posting image in post

I’am getting this error each time, while i want to save it as a concept or when i want to publish my post. My version of WordPress is 3.1, and i saw this fix at this moment (link) but that doesnt work for me yet.

Does somebody know if there is coming a fix for this?
Or if there is an upcoming update of this plugin?

Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in /mnt/web7/11/39/51967939/htdocs/sg/wp-content/plugins/yet-another-photoblog/lib/Yapb.class.php on line 291

Warning: array_key_exists() [function.array-key-exists]: The second argument should be either an array or an object in /mnt/web7/11/39/51967939/htdocs/sg/wp-content/plugins/yet-another-photoblog/lib/Yapb.class.php on line 291

Warning: Cannot modify header information - headers already sent by (output started at /mnt/web7/11/39/51967939/htdocs/sg/wp-content/plugins/yet-another-photoblog/lib/Yapb.class.php:291) in /mnt/web7/11/39/51967939/htdocs/sg/wp-includes/pluggable.php on line 897