I'm using Magento 2 CE Version 2.1.0
I already referred Magento SO post with the same error.
When I'm going to Edit Any of the Product then while loading it's giving this error. Below are the details of log files
var\log\debug.log
[2016-09-30 02:15:53] main.DEBUG: cache_invalidate: {"method":"GET","url":"http:/","invalidateInfo":{"tags":["FPC"],"mode":"matchingTag"},"is_exception":false} [] [2016-09-30 02:15:59] main.DEBUG: cache_invalidate: {"method":"GET","url":"http://localhost/magento2/admin/catalog/product/edit/id/2048/set/16/type/simple/store/0/key/83d52c6cd14f1a381e2ceadbc0485a387f7e57f44c790eeff40a79e21f5dbd0a/back/edit/","invalidateInfo":{"tags":["interception","CONFIG"],"mode":"matchingTag"},"is_exception":false} []
var\log\system.log
[2016-09-30 02:16:07] main.INFO: Cache file with merged layout: LAYOUT_adminhtml_STORE0_3a828e091252a8ca686703b2c072394bd and handles default, catalog_product_edit, catalog_product_simple: Please correct the XML data and try again. [] [] [2016-09-30 02:16:07] main.INFO: Cache file with merged layout: LAYOUT_adminhtml_STORE0_3cf9ab1b1723bedc1dcd665a812b00335 and handles admin-1column: Please correct the XML data and try again. [] [] [2016-09-30 02:16:07] main.CRITICAL: Broken reference: the 'header' tries to reorder itself towards 'global.notices', but their parents are different: 'page.wrapper' and 'notices.wrapper' respectively. [] [] [2016-09-30 02:16:07] main.CRITICAL: Broken reference: the 'page.breadcrumbs' tries to reorder itself towards 'notifications', but their parents are different: 'page.wrapper' and 'notices.wrapper' respectively. [] [] [2016-09-30 02:16:07] main.CRITICAL: Broken reference: the 'notification.messages' tries to reorder itself towards 'user', but their parents are different: 'header.inner.right' and 'header' respectively. [] [] [2016-09-30 02:16:07] main.INFO: Cache file with merged layout: LAYOUT_adminhtml_STORE0_36f1b068ec7ccf4878f9284dd1137afd1 and handles catalog_product_prices: Please correct the XML data and try again. [] [] [2016-09-30 02:16:09] main.INFO: Item Magento_Backend::system_currency was removed [] []