Hi,
Exactly the same probem:
Fatal error: Uncaught Error: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class MGWPAdmin does not have a method "handlePluginHealthInfo"
in /home/guch4275/pf/music-1.i-cg.fr/wp-includes/class-wp-hook.php on line 308
Call stack:
WP_Hook::apply_filters()
wp-includes/plugin.php:205
apply_filters()
wp-admin/includes/class-wp-debug-data.php:1459
WP_Debug_Data::debug_data()
wp-content/plugins/site-reviews/plugin/Database/Cache.php:131
GeminiLabs\S\D\Cache::getSystemInfo()
wp-content/plugins/site-reviews/plugin/Controllers/DeactivationController.php:147
GeminiLabs\S\C\DeactivationController::deactivateInsight()
wp-content/plugins/site-reviews/plugin/Controllers/DeactivationController.php:52
GeminiLabs\S\C\DeactivationController::enqueueAssets()
wp-includes/class-wp-hook.php:308
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:332
WP_Hook::do_action()
wp-includes/plugin.php:517
do_action()
wp-admin/admin-header.php:118
require_once()
wp-admin/plugins.php:605
I must deactivate the plugin and unsinstall.
Then it work well.