Stores to moderate

Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/src/templates-php/moderator/stores.php:97 Stack trace: #0 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/src/templates-php/moderator/stores.php(97): mysqli_num_rows(false) #1 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/php/shortcode.php(8): include('/home/kalsteinp...') #2 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/php/shortcode.php(840): render_php_file('moderator/store...') #3 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/kalsteinPerfiles.php(858): shortcodePerfiles->moderator_stores() #4 /home/kalsteinpa/public_html/plataforma/wp-includes/shortcodes.php(434): PerfilesModeratorStores(Array, '', 'MODERATOR_STORE...') #5 [internal function]: do_shortcode_tag(Array) #6 /home/kalsteinpa/public_html/plataforma/wp-includes/shortcodes.php(273): preg_replace_callback('/\\[(\\[?)(MODERA...', 'do_shortcode_ta...', '<!-- vcwb/dynam...') #7 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/visualcomposer/visualcomposer/Modules/FrontView/FrontViewController.php(57): do_shortcode('<!-- vcwb/dynam...') #8 [internal function]: VisualComposer\Modules\FrontView\FrontViewController->VisualComposer\Modules\FrontView\{closure}(Array) #9 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/visualcomposer/visualcomposer/Modules/FrontView/FrontViewController.php(50): preg_replace_callback('/<!--vcv no for...', Object(Closure), '<!--vcv no form...') #10 [internal function]: VisualComposer\Modules\FrontView\FrontViewController->encode('<!--vcv no form...', 'the_content') #11 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/visualcomposer/visualcomposer/Framework/Container.php(63): ReflectionMethod->invokeArgs(Object(VisualComposer\Modules\FrontView\FrontViewController), Array) #12 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/visualcomposer/visualcomposer/Helpers/Traits/WpFiltersActions.php(23): VisualComposer\Framework\Container->call('encode', Array) #13 /home/kalsteinpa/public_html/plataforma/wp-includes/class-wp-hook.php(324): VisualComposer\Modules\FrontView\FrontViewController->VisualComposer\Helpers\Traits\{closure}('<!--vcv no form...') #14 /home/kalsteinpa/public_html/plataforma/wp-includes/plugin.php(205): WP_Hook->apply_filters('<!--vcv no form...', Array) #15 /home/kalsteinpa/public_html/plataforma/wp-includes/post-template.php(256): apply_filters('the_content', '<!--vcv no form...') #16 /home/kalsteinpa/public_html/plataforma/wp-content/plugins/visualcomposer/visualcomposer/resources/views/editor/templates/blank-template.php(65): the_content() #17 /home/kalsteinpa/public_html/plataforma/wp-includes/template-loader.php(106): include('/home/kalsteinp...') #18 /home/kalsteinpa/public_html/plataforma/wp-blog-header.php(19): require_once('/home/kalsteinp...') #19 /home/kalsteinpa/public_html/plataforma/index.php(17): require('/home/kalsteinp...') #20 {main} thrown in /home/kalsteinpa/public_html/plataforma/wp-content/plugins/kalsteinPerfiles/src/templates-php/moderator/stores.php on line 97