Upgrade Tiki18 to 21 Error
Dear folks, I keep getting this same error with multiple attempts upgrading my tiki18 to 21
Fatal error: Uncaught Error: Call to a member function set_preference() on null in /home/woodwiki/public_html/installer/schema/20180410_install_piwik_plugin_tiki.php:17 Stack trace: #0 /home/woodwiki/public_html/installer/installlib.php(186): upgrade_20180410_install_piwik_plugin_tiki(Object(Installer)) #1 /home/woodwiki/public_html/installer/installlib.php(141): Installer->installPatch('20180410_instal...') #2 /home/woodwiki/public_html/installer/tiki-installer.php(1061): Installer->update() #3 /home/woodwiki/public_html/tiki-install.php(105): include_once('/home/woodwiki/...') #4 {main} thrown in /home/woodwiki/public_html/installer/schema/20180410_install_piwik_plugin_tiki.php on line 17
Can someone please guide me to a solution?
Managed VPS
PHP7.2