Notices

I get these notices when I goto the admin form page.

I have not filled anything in.

Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 67 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 72 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 84 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 92 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 100 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 108 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 116 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 124 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 132 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 151 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 159 of sms_simplegateway/sms_simplegateway.module).
Notice: Uninitialized string offset: 0 in sms_simplegateway_admin_form() (line 167 of sms_simplegateway/sms_simplegateway.module).