Im getting warnings?

When I or any user click the "Upload New Images" link I get the following warnings...

warning: array_keys() [function.array-keys]: The first argument should be an array in /home/u375806539/public_html/modules/node_gallery_default/node_gallery_default.module on line 68.

warning: array_fill() [function.array-fill]: Number of elements must be positive in /home/u375806539/public_html/includes/database.inc on line 253.

warning: implode() [function.implode]: Invalid arguments passed in /home/u375806539/public_html/includes/database.inc on line 253.

user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 query: SELECT nid, uid FROM node_gallery_default WHERE nid IN () in /home/u375806539/public_html/modules/node_gallery_default/node_gallery_default.module on line 72.

It still allows me and users to upload images, but how can I fix this and what does it all mean?

Thanks!