Describe the issue or problem
After Installed PKP|PN (PKP Protected Network) plugin, I cannot access Installed Plugins. The Plugin Gallery can be accessed.
My OJS Version: 3.4.0.7
I have actually installed this plugin before and after I upgraded from 3.4.0.6 to 3.4.0.7, the plugin shows “Can be upgraded’.
I clicked [Upgrade] and couldn’t get it to install successfully. So, on the Installed Plugins page, I select Upload A New Plugin, click Save. After that, the Installed Plugins cannot be accessed.
I tried deleting the plugin, but could not access the Installed Plugins page. Although I can also delete the pln folder in public_html/plugins/generic/pln, but after deleting, the plugin will show as “Can be upgraded” again.
The php error:
2024-10-22 05:44:45.789919 [NOTICE] [2949883] [T0] [34.41.149.29:37352#APVH_wepub.org:443] [STDERR] PHP Fatal error: Uncaught Error: Interface “PKP\plugins\interfaces\HasTaskScheduler” not found in /home/pupuborg/public_html/plugins/generic/pln/PlnPlugin.php:54\nStack trace:\n#0 /home/pupuborg/public_html/lib/pkp/lib/vendor/composer/ClassLoader.php(576): include()\n#1 /home/pupuborg/public_html/lib/pkp/lib/vendor/composer/ClassLoader.php(427): Composer\Autoload{closure}()\n#2 [internal function]: Composer\Autoload\ClassLoader->loadClass()\n#3 /home/pupuborg/public_html/lib/pkp/classes/plugins/PluginRegistry.php(191): class_exists()\n#4 /home/pupuborg/public_html/lib/pkp/classes/plugins/PluginRegistry.php(219): PKP\plugins\PluginRegistry::_instantiatePlugin()\n#5 /home/pupuborg/public_html/lib/pkp/classes/plugins/PluginRegistry.php(112): PKP\plugins\PluginRegistry::_loadFromDatabase()\n#6 /home/pupuborg/public_html/lib/pkp/classes/core/Dispatcher.php(155): PKP\plugins\PluginRegistry::loadCategory()\n#7 /home/pupuborg/public_html/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch()\n#8 /home/pupuborg/public_html/index.php(21): PKP\core\PKPApplication->execute()\n#9 {main}\n thrown in /home/pupuborg/public_html/plugins/generic/pln/PlnPlugin.php on line 54\n
Looking forward to getting help from everyone.