Notice unserialize function Errors

Hey there. I just wanted to point out the following errors with the plugin. WP Debug posted the following:

Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/init.php on line 20
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/login-form-screen.php on line 11
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/login-form-screen.php on line 12
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/css/socialcss.php on line 2
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/init.php on line 176
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/login-form-screen.php on line 109
Notice: unserialize(): Error at offset 0 of 1 bytes in /www/wp-content/plugins/admin-custom-login/login-form-screen.php on line 121

I know turning off WP Debug will make the notices stop appearing. But this isn’t a fix. Either way, I don’t appear to be having a problem with the plugin’s functionality. But errors are errors. Oh and I’m using the latest version of the plugin.