Социологическое исследование по оценке уровня коррупции в сфере культуры

Fatal error: Uncaught Error: Call to undefined function DemocracyPoll\str_contains() in /var/www/u1601062/data/www/cgi-rb.ru/wp-content/plugins/democracy-poll/classes/Poll_Renderer.php:65 Stack trace: #0 /var/www/u1601062/data/www/cgi-rb.ru/wp-content/plugins/democracy-poll/includes/theme-functions.php(103): DemocracyPoll\Poll_Renderer->render_poll('vote', '<strong class="...') #1 /var/www/u1601062/data/www/cgi-rb.ru/wp-content/plugins/democracy-poll/classes/Shortcodes.php(56): get_democracy_poll(Array) #2 /var/www/u1601062/data/www/cgi-rb.ru/wp-includes/shortcodes.php(394): DemocracyPoll\Shortcodes->democracy_shortcode(Array, '', 'democracy') #3 [internal function]: do_shortcode_tag(Array) #4 /var/www/u1601062/data/www/cgi-rb.ru/wp-includes/shortcodes.php(266): preg_replace_callback('/\\[(\\[?)(democr...', 'do_shortcode_ta...', '\n<p class="has-...') #5 /var/www/u1601062/data/www/cgi-rb.ru/wp-includes/class-wp-hook.php(303): do_shortcode('\n<p class="has-...') #6 /var/www/u1601062/data/www/cgi-rb.ru/wp-includes/plugin.ph in /var/www/u1601062/data/www/cgi-rb.ru/wp-content/plugins/democracy-poll/classes/Poll_Renderer.php on line 65