Manual Shares Error

When I click on some Not shared [Share now] links, nothing happens. Rare, but can happen in a blue moon. The error I see in server error log is this:

[04-Sep-2023 04:10:38 UTC] PHP Fatal error: Uncaught WpOrg\Requests\Exception\InvalidArgument: WpOrg\Requests\Transport\Curl::request(): Argument #3 ($data) must be of type array|string, boolean given in /home/mysite/public_html/blog/wp-includes/Requests/src/Exception/InvalidArgument.php:29
[04-Sep-2023 04:10:38 UTC] PHP Fatal error: Uncaught WpOrg\Requests\Exception\InvalidArgument: WpOrg\Requests\Transport\Curl::request(): Argument #3 ($data) must be of type array|string, boolean given in /home/mysite/public_html/blog/wp-includes/Requests/src/Exception/InvalidArgument.php:29
Stack trace: 0 /home/mysite/public_html/blog/wp-includes/Requests/src/Transport/Curl.php(161): WpOrg\Requests\Exception\InvalidArgument::create(3, ‘$data’, ‘array|string’, ‘boolean’) 1 /home/mysite/public_html/blog/wp-includes/Requests/src/Requests.php(469): WpOrg\Requests\Transport\Curl->request(‘https://api.lin…’, Array, false, Array) 2 /home/mysite/public_html/blog/wp-includes/class-wp-http.php(396): WpOrg\Requests\Requests::request(‘https://api.lin…’, Array, false, ‘POST’, Array) 3 /home/mysite/public_html/blog/wp-includes/class-wp-http.php(616): WP_Http->request(‘https://api.lin…’, Array) 4 /home/mysite/public_html/blog/wp-includes/http.php(186): WP_Http->post(‘https://api.lin…’, Array) 5 /home/mysite/public_html/blog/wp-content/plugins/wp-linkedin-auto-publish/wp-linkedin-auto-publish.php(943): wp_remote_post(‘https://api.lin…’, Array) 6 /home/mysite/public_html/blog/wp-content/plugins/wp-linkedin-auto-publish/wp-linkedin-auto-publish.php(1039): wp_linkedin_autopublish_post_to_linkedin_common(1168) 7 /home/mysite/public_html/blog/wp-includes/class-wp-hook.php(310): wp_linkedin_autopublish_post_to_linkedin_instantly(”) 8 /home/mysite/public_html/blog/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(”, Array) 9 /home/mysite/public_html/blog/wp-includes/plugin.php(517): WP_Hook->do_action(Array) 10 /home/mysite/public_html/blog/wp-admin/admin-ajax.php(188): do_action(‘wp_ajax_post_to…’) 11 {main}

thrown in /home/mysite/public_html/blog/wp-includes/Requests/src/Exception/InvalidArgument.php on line 29