Db-cache Buffer plugin conflict after WordPress3.7 update

Fatal error:call to undefined method wpdb_2::d elete () in

/home/*/public_html/wp-includes/option.php on line 370

Online search for a moment, found by the Db-cache buffer plug-ins caused.

Workaround:

1.FTP Open/wp-content/, find db.php, back up first, then delete. After entering the background, the Db-cache buffer plugin is closed and then opened.

Problem solved temporarily, this is only a temporary solution can enter the background of the method. method to solve the source: http://techgyo.com/index.php/solved-wordpress-3-4-update-fatal-error-while-updating-database/(English!)

2. Delete spam comments, there is a new problem!

Fatal error:call to undefined method wpdb_2::d elete () in/home/*/public_html/wp-includes/meta.php on line 495

The cause of the problem is the Db-cache buffer plug-in. It seems to be a complete solution to the problem or shut down the plugin, or look at the following workaround:

The above is not to ask you to delete the db.php file, the problem is this, the solution is to download a db.php upload coverage is good. The problem was completely solved.