Error in events_upcoming.php on line 398

When saving a modified page in side builder, it returns the unchanged page.

[22-Nov-2024 19:01:58 UTC] PHP Fatal error: Uncaught Error: Attempt to assign property “ID” on null in /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/events_upcoming/events_upcoming.php:398
Stack trace:
#0 /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-shortcode-template.php(1329): avia_sc_upcoming_events->shortcode_handler()
#1 /homepages/xx/xxxx/htdocs/wp-includes/shortcodes.php(434): aviaShortcodeTemplate->shortcode_handler_prepare()
#2 [internal function]: do_shortcode_tag()
#3 /homepages/xx/xxxx/htdocs/wp-includes/shortcodes.php(273): preg_replace_callback()
#4 /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-shortcode-helper.php(559): do_shortcode()
#5 /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/section/section.php(1547): ShortcodeHelper::avia_remove_autop()
#6 /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-shortcode-template.php(1329): avia_sc_section->shortcode_handler()
#7 /homepages/xx/xxxx/htdocs/wp-includes/shortcodes.php(434): aviaShortcodeTemplate->shortcode_handler_prepare()
#8 [internal function]: do_shortcode_tag()
#9 /homepages/xx/xxxx/htdocs/wp-includes/shortcodes.php(273): preg_replace_callback()
#10 /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/class-template-builder.php(3195): do_shortcode()
#11 /homepages/xx/xxxx/htdocs/wp-includes/class-wp-hook.php(324): AviaBuilder->text_to_preview()
#12 /homepages/xx/xxxx/htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#13 /homepages/xx/xxxx/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#14 /homepages/xx/xxxx/htdocs/wp-admin/admin-ajax.php(192): do_action()
#15 {main}
thrown in /homepages/xx/xxxx/htdocs/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/events_upcoming/events_upcoming.php on line 398