Reproduced on two different WordPress installations.
Upload plugin > Activate > Get “There has been a critical error on this website.” message when accessing wp-admin/admin.php?page=mailster_setup
PHP Error Log:
2024-06-13 09:42:17.839367 [NOTICE] [7698] [T0] [104.225.142.116:52024-3#APVH_www.domain.com:lsapi] [STDERR] PHP Fatal error: Uncaught Error: Call to undefined method MailsterFreemius::get_id() in /home/user/shared/plugins/mailster/classes/mailster.class.php:1518\nStack trace:\n#0 /home/user/domains/domain.com/public_html/wp-includes/class-wp-hook.php(324): Mailster->setup_scripts_styles()\n#1 /home/user/domains/domain.com/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()\n#2 /home/user/domains/domain.com/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()\n#3 /home/user/domains/domain.com/public_html/wp-admin/admin.php(237): do_action()\n#4 {main}\n thrown in /home/user/shared/plugins/mailster/classes/mailster.class.php on line 1518\n
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