More errors! in Ultimate Facebook plugin?

Now I get this

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Undefined index: post_ID in .../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php on line 810

Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

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This was when I tried to move 3 pages in the root site (not a multisite subsite) into Trash
Notice: Trying to get property of non-object in .../wp-content/plugins/slide-in/lib/class_wdsi_slide_in.php on line 569

Warning: Cannot modify header information - headers already sent by (output started at
.../wp-content/plugins/wpmu-dev-facebook/lib/class_wdfb_admin_pages.php:810) in .../wp-includes/pluggable.php on line 1121