Looks like an issue with form-key
- Go to app/design/frontend/[Your-package]/[Your-theme]/template/customer/form/login.phtml and template/persistent/customer/form/login.phtml and under
- Find:
<ul class=”form-list”> - And paste this right after the code above the following:
<input name="form_key" type="hidden" value="<?php echo Mage::getSingleton('core/session')->getFormKey() ?>" />
Repeat above for app/design/frontend/Your-package]/[Your-theme]/template/persistent/customer/form/login.phtml
