W3 Total Cache error

Update failed: W3 Total Cache Error: some files appear to be missing or out of place. Please re-install plugin or remove /home/austintinius/blog.stephaniewalls.com/wp-content/object-cache.php. {“success”:true,”data”:{“update”:”plugin”,”slug”:”facebook-for-woocommerce”,”oldVersion”:”Version 2.6.7″,”newVersion”:”Version 2.6.8″,”plugin”:”facebook-for-woocommerce\/facebook-for-woocommerce.php”,”pluginName”:”Facebook for WooCommerce”}}

I can not find a way to fix this for the life of me and it keeps making my website crash because I cant update anything.

Stephanie