Images not showing

I am having problems putting up images. When I use code, I get a box with a question mark in it and if I try the other UPLOAD feature, only the ‘alt’ name appears and it gives me the following messages. No clue how to correct this. Any advice would be much appreciated. Thanks. A

Warning: imagejpeg(): Unable to access /home/www/biscuitsbylambchop/throwyourdogabone/wp-content/starrblog1.thumbnail.jpg in /home/www/biscuitsbylambchop/throwyourdogabone/wp-admin/admin-functions.php on line 2310

Warning: imagejpeg(): Invalid filename ‘/home/www/biscuitsbylambchop/throwyourdogabone/wp-content/starrblog1.thumbnail.jpg’ in /home/www/biscuitsbylambchop/throwyourdogabone/wp-admin/admin-functions.php on line 2310

Warning: Cannot modify header information – headers already sent by (output started at /home/www/biscuitsbylambchop/throwyourdogabone/wp-admin/admin-functions.php:2310) in /home/www/biscuitsbylambchop/throwyourdogabone/wp-includes/pluggable.php on line 331