I had a perfectly fine dokuwiki working on my localhost, I installed the Struct plugin which told me that I needed to install sqlite plugin and just when i clicked install on the sqlite plugin the page refreshed to give me http error 500. Now even localhost/dokuwiki gives http error 500, nothing else, I cannot open any page. Please help. I am a new user registering only to post this. Thank you.
Running: Dokuwiki with Apache2 on Ubuntu 18.04
The Apache2 error log has this:
PHP Fatal error: Uncaught Error: Call to a member function getName() on null in /var/www/html/dokuwiki/lib/plugins/struct/helper/db.php:38\nStack trace:\n#0 /var/www/html/dokuwiki/lib/plugins/struct/helper/db.php(22): helper_plugin_struct_db->init()\n#1 /var/www/html/dokuwiki/inc/plugincontroller.class.php(109): helper_plugin_struct_db->__construct()\n#2 /var/www/html/dokuwiki/inc/pluginutils.php(45): Doku_Plugin_Controller->load('helper', 'struct_db', false, false)\n#3 /var/www/html/dokuwiki/lib/plugins/struct/meta/PageMeta.php(20): plugin_load('helper', 'struct_db')\n#4 /var/www/html/dokuwiki/lib/plugins/struct/action/title.php(42): dokuwiki\\plugin\\struct\\meta\\PageMeta->__construct('home')\n#5 /var/www/html/dokuwiki/inc/events.php(229): action_plugin_struct_title->handle_meta(Object(Doku_Event), NULL)\n#6 /var/www/html/dokuwiki/inc/events.php(79): Doku_Event_Handler->process_event(Object(Doku_Event), 'AFTER')\n#7 /var/www/html/dokuwiki/inc/parserutils.php(502): Doku_Event->advise_after()\n#8 /var/www/html/dokuwiki/inc/parserutils.php(272): p_render_meta in /var/www/html/dokuwiki/lib/plugins/struct/helper/db.php on line 38