Title: WordPress Multiuser problem and fix
Last modified: August 21, 2016

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# WordPress Multiuser problem and fix

 *  [Adam](https://wordpress.org/support/users/adamfeuer/)
 * (@adamfeuer)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/wordpress-multiuser-problem-and-fix/)
 * Hi,
 * I use WordPress 3.6.1, Shopp 1.2.9, and I have the Washington State Sales Tax
   for Shopp plugin installed on a WordPress Multiuser site.
 * When I installed it, the plugin option page kept giving me a 404 page (“file 
   not found error”). After some debugging, I found that this solved the problem:
 * In the file washington-state-sales-tax-for-shopp/washington-state-sales-tax-for-
   shopp.php, in the function __construct, change the line that reads:
 * `add_action( 'admin_menu', array( &$this, 'options_page_init' ));`
 * to this:
 *  `add_action( 'admin_menu', array( &$this, 'options_page_init' ) , 20);`
 * This makes the add_action a higher priority, so the option page will work. I 
   found out how to do this using this posting:
 * [http://buddypress.org/support/topic/add_submenu_page-__file__-problem/](http://buddypress.org/support/topic/add_submenu_page-__file__-problem/)
 * cheers
    adam — Adam F. Seattle, WA, USA
 * [http://wordpress.org/plugins/washington-state-sales-tax-for-shopp/](http://wordpress.org/plugins/washington-state-sales-tax-for-shopp/)

The topic ‘WordPress Multiuser problem and fix’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/washington-state-sales-tax-for-shopp_eef7fb.
   svg)
 * [Washington State Sales Tax for Shopp](https://wordpress.org/plugins/washington-state-sales-tax-for-shopp/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/washington-state-sales-tax-for-shopp/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/washington-state-sales-tax-for-shopp/)
 * [Active Topics](https://wordpress.org/support/plugin/washington-state-sales-tax-for-shopp/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/washington-state-sales-tax-for-shopp/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/washington-state-sales-tax-for-shopp/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [Adam](https://wordpress.org/support/users/adamfeuer/)
 * Last activity: [12 years, 7 months ago](https://wordpress.org/support/topic/wordpress-multiuser-problem-and-fix/)
 * Status: not resolved