Having a few issues after fresh install

Hi,

Installed the theme first time to do some test. Everything was working fine.
Decided today to do a fresh install of wordpress and to setup everything from scratch but now ive having a few issues with arcane.

The demo is not working as intented.
The menu on homepage not working.
Getting the following error with teamwars and visual composer.

Fatal error: Uncaught Error: [] operator not supported for strings in /home/deadlinkd/public_html/wp-content/themes/arcane/addons/team-wars/wp-teamwars.php:676 Stack trace: #0 /home/deadlinkd/public_html/wp-content/themes/arcane/vc_templates/vc_latest_matches.php(60): Arcane_TeamWars->get_game(‘id=2’) #1 /home/deadlinkd/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/shortcodes.php(473): include(‘/home/deadlinkd…’) #2 /home/deadlinkd/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/shortcodes.php(453): WPBakeryShortCode->loadTemplate(Array, ”) #3 /home/deadlinkd/public_html/wp-content/plugins/js_composer/include/classes/shortcodes/shortcodes.php(565): WPBakeryShortCode->content(Array, ”) #4 /home/deadlinkd/public_html/wp-content/plugins/js_composer/include/helpers/helpers.php(1419): WPBakeryShortCode->output(Array, ”) #5 /home/deadlinkd/public_html/wp-includes/shortcodes.php(345): vc_do_shortcode(Array, ”, ‘vc_latest_match…’) #6 [internal function]: do_shortcode_tag(Array in /home/deadlinkd/public_html/wp-content/themes/arcane/addons/team-wars/wp-teamwars.php on line 676

can you help please?