Title: Theme Installation Issue Last modified: November 29, 2016 --- # Theme Installation Issue * [deftdanny](https://wordpress.org/support/users/deftdanny/) * (@deftdanny) * [9 years, 6 months ago](https://wordpress.org/support/topic/installation-issue-31/) * _[ [Move to How-To and Troubleshooting.](https://wordpress.org/support/topic/please-use-how-to-and-troubleshooting-if-you-have-problems-after-installation/)]_ * Hi, * I installed the Sydney Theme on one of my clients website and when I go to customize this error pops up. It will not allow me to customize the page, can you please help? * Fatal error: Call to undefined method WP_Customize_Manager::register_section_type() in /home/kate2005/public_html/wp-content/themes/sydney/inc/upsell/class-customize. php on line 68 Viewing 1 replies (of 1 total) * Moderator [t-p](https://wordpress.org/support/users/t-p/) * (@t-p) * [9 years, 6 months ago](https://wordpress.org/support/topic/installation-issue-31/#post-8494823) * Try manually re-uploading this theme from a fresh download of it: installing themes manually?: [https://codex.wordpress.org/Using_Themes#Adding_New_Themes_Manually_.28FTP.29](https://codex.wordpress.org/Using_Themes#Adding_New_Themes_Manually_.28FTP.29) * If that does not resolve the issue, the developers and users of this theme/plugin would be the best people to ask. You can reach them here: [https://wordpress.org/support/theme/sydney](https://wordpress.org/support/theme/sydney) Viewing 1 replies (of 1 total) The topic ‘Theme Installation Issue’ is closed to new replies. * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 1 reply * 2 participants * Last reply from: [t-p](https://wordpress.org/support/users/t-p/) * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/installation-issue-31/#post-8494823) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics