eBay allowed a critical SSL certificate to expire today without renewing it. As a result apps are now unable to resize themselves once started. If you only see a few listings and are unable to see the entire left hand menu this is why.
There are two solutions you can use to fix this:
1) Go to https://gadgets.appsonebay.com. Tell your browser to ignore all security problems with opening this site. Restart Price Spectre and you should see it working fine. Keep in mind means a hacker would now be able to impersonate the gadgets.appsonebay.com domain and your browser would fine with that.
2) If you are still unable to open the app please log in through our website at https://www.qtyman.com/quantity-manager.shtml using the username "sma-" (without quotes) and append your eBay userid. For example if your eBay userid is qtyman then your Quantity Manager id would be sma-qtyman. If this is your first time logging in this way you will need to reset your password.