Unexpected AbanteCart failure or error check listchecklist
If your AbanteCart stopped functioning do not panic. AbanteCart application is running on the server operating system and many small things that can cause issues for all your web applications.
Follow this steps and identify a problem you might have and quick resolution. Go though this through this list and understand what is happening.
Note: Majority of unexpected issues are happening due to hosting/server related issues/changes or code modifications.