Provide us with WP Dashboard adn FTP access to your site, please.
Did you choose the Business while adding account https://prnt.sc/D_tvjvIIGYFt ? Because if your Insta account type is business you should not choose the Personal one in these settings, only the business one.
So, remove existing tokens and choose the Business type while generating tocken.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.