Today, I had to create a new shop on a magento 18.104.22.168
Everything was fine until I pressed the button "save the shop" (Actualy I have a French magento, i juste translated the sentence). An error message printer:
Error while saving. Check the logs.
So I looked at the logs, but system.log has not been modified since three months.
So I'm a bit sad, because that's urgent, and my little knowledges and internet research were not really satisfying.
I guess this should affect the database. I've found some tables, as core_store_group, etc. But I think these are not the only affected tables.
If someone have any idea, I'm open to every offer.
Please enable your Magento logs.
You'll need to to: System -> Configuration and then, at the bottom:
Now you can enable the Magento's logs:
Also take a look at your webserver error logs. Sometimes you'll get some useful information there.