“Instamojo Plugin requires WooCommerce to be Installed First!”
The problem is not with multisite. The problem is you have not installed woocommerce plugin.
You must first install Woocommerce plugin and then Woocommerce Instamojo plugin.
You must have read the description properly instead of giving the plugin 1 star.
Hi @manjunathpmf, @jaganmohan already mentioned that WooCommerce is Network Active.
BTW, I’m also getting same error on WPMS with WooCommerce being Network Active.