Errors on Save

Hello, When trying to save the updated country list I get these warnings and errors. I’ve replaced the home directory with XXXX for privacy. Thanks Warning: unlink(XXXX//blocked.txt): No such file or directory in XXXX/wp-content/plugins/mr-blocker/Mr_Blocker.php on line 71 Fatal error: Uncaught ArgumentCountError: Too few arguments to function wp_kses(), 1 passed in XXXX/wp-content/plugins/mr-blocker/Mr_Blocker.php on line 82 and at least 2 expected in XXXX/wp-includes/kses.php:526 Stack trace: #0 XXXX/wp-content/plugins/mr-blocker/Mr_Blocker.php(82): wp_kses(‘Afghanistan’) #1 XXXX/wp-includes/class-wp-hook.php(286): mbp_Content(”) #2 XXXX/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #3 XXXX/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #4 XXXX/wp-admin/admin.php(224): do_action(‘toplevel_page_M…’) #5 {main} thrown in XXXX/wp-includes/kses.php on line 526