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have you customized any code?
Can you please deactivate and activate the plugin again. i found there is an issue on your site.
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Not sure how this is happening, i will need to check your site admin,
I tested on a local copy of the site and turned off all plugins and changed the theme and I still got the error. Here is the error log:
[19-Sep-2019 16:56:40 UTC] PHP Warning: Illegal string offset 'reviews' in /Applications/MAMP/htdocs/wayoframentests/wp-content/plugins/question-answer/includes/functions.php on line 2555
[19-Sep-2019 16:56:40 UTC] PHP Warning: Illegal string offset 'users' in /Applications/MAMP/htdocs/wayoframentests/wp-content/plugins/question-answer/includes/functions.php on line 2556
[19-Sep-2019 16:56:40 UTC] PHP Fatal error: Uncaught Error: Cannot use string offset as an array in /Applications/MAMP/htdocs/wayoframentests/wp-content/plugins/question-answer/includes/functions.php:2556
#0 /Applications/MAMP/htdocs/wayoframentests/wp-includes/class-wp-hook.php(286): qa_answer_thumbsup_action('')
#1 /Applications/MAMP/htdocs/wayoframentests/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array)
#2 /Applications/MAMP/htdocs/wayoframentests/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#3 /Applications/MAMP/htdocs/wayoframentests/wp-admin/admin-ajax.php(173): do_action('wp_ajax_qa_answ…')
thrown in /Applications/MAMP/htdocs/wayoframentests/wp-content/plugins/question-answer/includes/functions.php on line 2556
Thank you for the response. I didn't modify the plugin, i only styled the buttons through an exeternal css editor within the theme. I deactivated and reactivated the plugin but it didn't work. It still doesn't do anything.
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