Meta, who own Instagram and Facebook, have a few rules when it comes to connecting outside apps like Kirmada.
You can’t connect an Instagram account unless it’s a business account, and that account needs to be linked to a Facebook page too. You will also need admin access to the Facebook page for the link to work.
Once you have followed these steps, all you need to do to connect a Workspace to your Instagram by clicking the Edit Workspace icon 
on the Workspaces’s card on the Homepage and then Connect Instagram.
Further information can be found on the following links: