Getting the following error:
http://api.leadblasta.com/Account/Login?ReturnUrl=%2FEmailServiceOAuth%2FMailchimpCallback%3Ferror%3Dredirect_uri_mismatch#oauth_error

Any ideas?
Also, no one has posted updates since Jan 2021. Is this software still working? Spent alot of time building categories and don't want that to go to waste.