# Error while installing multisites **URL:** \ **Category:** OpenEMR Development\ **Tags:** question, installation, infrastructure\ **Created:** [April 3, 2021, 11:22am UTC](https://community.open-emr.org/t/error-while-installing-multisites/16392 "2021-04-03T11:22:38Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![juggernautsei](https://community.open-emr.org/user_avatar/community.open-emr.org/juggernautsei/32/10764_2.png) [@juggernautsei](https://community.open-emr.org/u/juggernautsei)\ **Post date:** [April 3, 2021, 11:22am UTC](https://community.open-emr.org/t/error-while-installing-multisites/16392/1 "2021-04-03T11:22:38Z")
``` PHP Fatal error: Uncaught Error: Call to undefined method Installer::install_additional_users() in /openemr/html/openemr/setup.php:1236\nStack trace:\n#0 {main}\n thrown in /openemr/html/openemr/setup.php ``` I chased this down to see where the error could possibly spring from. Going from set up to the installer.class to the load\_file function is as far as I got. The install stops on Additional Official Users. The load\_file function is supposed to have a $filename passed with it. Which is ``` $this->additional_users = dirname( __FILE__ ) . "/../../sql/official_additional_users.sql"; ``` Which does exist on the server ``` 5375064 -rw-rw-r-- 1 www-data www-data 249 Jan 5 22:53 official_additional_users.sql ``` The question becomes why can’t the script open it? Thinking out loud here. Any suggestions? Now, I can get pasted this if I clone the original database instead of creating a new database. The issue with cloning is the theme comes up looking messed up but when I navigate to the globals and select any other theme than the default. It straightens up and looks normal. This is a google cloud server. Ubuntu 20.04 MariaDB 10.x PHP 7.4 7.4GB RAM 2 Cores