I was getting the error in the image attached. Amember help told me to install ioncube or zend, which GoDaddy then did for me. Then they told me that my site was down because of an error in my php5.ini file, which they were not allowed to help me with. I've attached that file, too, as a .txt file. Please let me know if you can help. Thanks.
That error means that IonCube was not installed right. From your php.ini I see that it already load ZendOptimizer so IonCube loaders installation is not necessary. Remove last line from php.ini and try to install aMember Trial Zend Encoded version: http://www.amember.com/downloads/amember-ZEND-latest.zip