Title: Error, error
Last modified: December 17, 2018

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# Error, error

 *  Resolved [pit24](https://wordpress.org/support/users/pit24/)
 * (@pit24)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-error-2/)
 * Error, error. Mistake
    Is this plugin someone showing signs of life?
 * call_user_func_array() expects parameter 1 to be a valid callback, function ‘
   wdtEnableMultipleConnections’ not found or invalid function name 1
 * call_user_func_array() expects parameter 1 to be a valid callback, function ‘
   wdtLoadTextdomain’ not found or invalid function name 1
 * wp-includes/class-wp-hook.php:286
    call_user_func_array() expects parameter 1
   to be a valid callback, function ‘wdtAddBodyClass’ not found or invalid function
   name 1

Viewing 1 replies (of 1 total)

 *  Plugin Author [wpDataTables](https://wordpress.org/support/users/wpdatatables/)
 * (@wpdatatables)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/error-error-2/#post-11026848)
 * Hi,
 * When you are creating queries in query box please do not use:
 * – name of the database with the table name (SELECT * FROM database_name.table
   name)
 * – remove accent grave (`) from query
 * From version 2.3 we implement feature that you can use multiply separate db connections
   for (MySQL, MSSQL and PostgreSQL) and for MySQL engine we are dynamically adding
   accent grave (`).
 * If your MySQL-query based wpDataTable still doesn’t work correctly with server-
   side processing, probably this is happening because wpDataTables server has problems
   with parsing of the query and building new queries dynamically (rarely happens,
   but does sometimes). To avoid this please prepare a [MySQL view](https://dev.mysql.com/doc/refman/5.0/en/views.html)(
   a stored query), which will return the data that you need, call it e.g. “view1”
   and then build a wpDataTabled based on a simple query like “SELECT * FROM view1″.
 * _[ [Signature deleted](https://wordpress.org/support/guidelines/#avoid-signatures)]_
    -  This reply was modified 7 years, 5 months ago by [Jan Dembowski](https://wordpress.org/support/users/jdembowski/).

Viewing 1 replies (of 1 total)

The topic ‘Error, error’ is closed to new replies.

 * ![](https://ps.w.org/wpdatatables/assets/icon-128x128.gif?rev=3010404)
 * [wpDataTables - WordPress Data Table, Dynamic Tables & Table Charts Plugin](https://wordpress.org/plugins/wpdatatables/)
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 * 1 reply
 * 2 participants
 * Last reply from: [wpDataTables](https://wordpress.org/support/users/wpdatatables/)
 * Last activity: [7 years, 5 months ago](https://wordpress.org/support/topic/error-error-2/#post-11026848)
 * Status: resolved