Fatal error: Uncaught Error: [] operator not supported for strings in /homepages/13/d159617324/htdocs/app159617334/wp-content/plugins/wp-easy-testimonial/public/class-etp-testimonials-manager-public.php:97 Stack trace: #0 /homepages/13/d159617324/htdocs/app159617334/wp-includes/class-wp-hook.php(310): ETP_Testimonials_Manager_Public->etp_addpostclass('') #1 /homepages/13/d159617324/htdocs/app159617334/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array) #2 /homepages/13/d159617324/htdocs/app159617334/wp-includes/post-template.php(598): apply_filters('post_class', Array, Array, 5224) #3 /homepages/13/d159617324/htdocs/app159617334/wp-includes/post-template.php(461): get_post_class(Array, Object(WP_Post)) #4 /homepages/13/d159617324/htdocs/app159617334/wp-content/themes/twentyseventeen/template-parts/post/content.php(15): post_class() #5 /homepages/13/d159617324/htdocs/app159617334/wp-includes/template.php(785): require('/homepages/13/d...') #6 /homepages/13/d159617324/htdocs/app159617334/wp-includes/template.p in /homepages/13/d159617324/htdocs/app159617334/wp-content/plugins/wp-easy-testimonial/public/class-etp-testimonials-manager-public.php on line 97