Fatal error: Uncaught Error: Class "Puc_v4p13_Scheduler" not found in /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/vendor/yahnis-elsts/plugin-update-checker/Puc/v4p13/Plugin/UpdateChecker.php:81
Stack trace:
#0 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/vendor/yahnis-elsts/plugin-update-checker/Puc/v4p13/UpdateChecker.php(91): Puc_v4p13_Plugin_UpdateChecker->createScheduler()
#1 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/vendor/yahnis-elsts/plugin-update-checker/Puc/v4p13/Plugin/UpdateChecker.php(59): Puc_v4p13_UpdateChecker->__construct()
#2 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/vendor/yahnis-elsts/plugin-update-checker/Puc/v4p13/Factory.php(121): Puc_v4p13_Plugin_UpdateChecker->__construct()
#3 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/udaddons/updraftplus-addons.php(107): Puc_v4p13_Factory::buildUpdateChecker()
#4 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/udaddons/updraftplus-addons.php(31): UpdraftPlusAddons2->__construct()
#5 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/updraftplus.php(108): require_once('...')
#6 /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/updraftplus.php(220): updraft_try_include_file()
#7 /mnt/web622/b3/67/5441067/htdocs/wp-settings.php(589): include_once('...')
#8 /mnt/web622/b3/67/5441067/htdocs/wp-config.php(100): require_once('...')
#9 /mnt/web622/b3/67/5441067/htdocs/wp-load.php(50): require_once('...')
#10 /mnt/web622/b3/67/5441067/htdocs/wp-blog-header.php(13): require_once('...')
#11 /mnt/web622/b3/67/5441067/htdocs/index.php(17): require('...')
#12 {main}
  thrown in /mnt/web622/b3/67/5441067/htdocs/wp-content/plugins/updraftplus/vendor/yahnis-elsts/plugin-update-checker/Puc/v4p13/Plugin/UpdateChecker.php on line 81