I have a problem with magento 188.8.131.52.
Example: if i place a order, make logout and realize a new order with another email, the customer data is not saved.
But if i clean "Section" in /var/sessions/ i can place a new order normally.
How to fix it?
First of all, I would suggest you to check your system.log file or exception.log file for error. Both the files are available into Magento Root -> Var -> Log folder. Here you can find errors for the problems you are getting, try to solve them to oversome the issue.
Still if you need more help, let me know again.