I am unable connect my IG as it says connected previously.

i have this same issue.

same issue, mine is showing this but request sent where? 

Exactly!! Sent nowhere!! Someone help us all!!

Hey ​@uttsav 

This means that another Manychat account, maybe one you created before, has your Instagram account connected.

If you remember the login details, just log in to that Manychat account. But if you don’t, you’ll need to contact Manychat support, and they should be able to help you.

Follow this link if you need to contact them: https://help.manychat.com/hc/en-us/p/get_support_page