Fatal error during installation

Hello, i was trying to install the plugin, but when i try to activate it the website says:

Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-content/plugins/dc-woocommerce-multi-vendor/includes/mvx-core-functions.php:110 Stack trace: #0 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-content/plugins/dc-woocommerce-multi-vendor/includes/class-mvx-install.php(147): update_mvx_vendor_settings() #1 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-content/plugins/dc-woocommerce-multi-vendor/includes/class-mvx-install.php(21): MVX_Install->save_default_plugin_settings() #2 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-content/plugins/dc-woocommerce-multi-vendor/includes/mvx-core-functions.php(691): MVX_Install->__construct() #3 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-includes/class-wp-hook.php(308): activate_mvx_plugin() #4 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters() #5 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-includes/plugin.php(517): WP_Hook->do_action() #6 /var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-admin/plugins.php(194): do_action() #7 {main} thrown in?/var/www/vhosts/aerosachs.it/store.aerosachs.it/wp-content/plugins/dc-woocommerce-multi-vendor/includes/mvx-core-functions.php?on line?110

Thank you.