Problem after Upgrading Magento

asked Jul 18, 2013 in E-commerce by dolphin111 (320 points)
Hi all..
After I upgraded my Magento to 1.7 I am not able to save any changes in the payment methods configuration changes in my admin area. I keep getting the below fatal error every time I try it. undefined function mcrypt_module_open()  . I am not sure what is causing this and how can I Fix it. If anyone knows please help.
Thank you  and best regards,

2 Answers

0 like 0 dislike
answered Jul 18, 2013 by TopNet (10,360 points)
magento 1.7 requires mcrypt extension. Ask your hosting provider to enable it.

If that doesn't work check the solution given here
0 like 0 dislike
answered Jul 18, 2013 by SmartHost (9,060 points)
If you are using any username and password saving application in your browser it could cause this issue.