Fatal error : Uncaught TypeError: join(): Argument #2 ($array) must be of type ?array, string given in /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php:1142
Stack trace:
#0 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php(1142): join(Array, ',')
#1 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php(667): WYSIJA_help_render_engine->_modifier('|join:','', Array, Array)
#2 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php(563): WYSIJA_help_render_engine->_getValue(Array, Array)
#3 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php(546): WYSIJA_help_render_engine->_replace('\n<p class="wysi...', Array)
#4 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php(169): WYSIJA_help_render_engine->_parse('{#body}\n\n <i...')
#5 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/form_engine.php(662): WYSIJA_help_render_engine->render(Array, 'templates/form/...')
#6 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/views/front/widget_nl.php(160): WYSIJA_help_form_engine->render_web()
#7 /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/widgets/wysija_nl.php(285): WYSIJA_view_front_widget_nl->display('<h4 class="widg...', Array, false, false)
#8 /home3/alovelyc/public_html/wp-includes/class-wp-widget.php(394): WYSIJA_NL_Widget->widget(Array, Array)
#9 /home3/alovelyc/public_html/wp-includes/widgets.php(845): WP_Widget->display_callback(Array, Array)
#10 /home3/alovelyc/public_html/wp-content/themes/rosa/sidebar.php(3): dynamic_sidebar('sidebar-main')
#11 /home3/alovelyc/public_html/wp-includes/template.php(812): require('/home3/alovelyc...')
#12 /home3/alovelyc/public_html/wp-includes/template.php(745): load_template('/home3/alovelyc...', false, Array)
#13 /home3/alovelyc/public_html/wp-includes/general-template.php(206): locate_template(Array, true, false, Array)
#14 /home3/alovelyc/public_html/wp-content/themes/rosa/single.php(162): get_template_part('sidebar')
#15 /home3/alovelyc/public_html/wp-includes/template-loader.php(106): include('/home3/alovelyc...')
#16 /home3/alovelyc/public_html/wp-blog-header.php(19): require_once('/home3/alovelyc...')
#17 /home3/alovelyc/public_html/index.php(17): require('/home3/alovelyc...')
#18 {main}
thrown in /home3/alovelyc/public_html/wp-content/plugins/wysija-newsletters/helpers/render_engine.php on line 1142 
