B1 Intercomany addon install Error

Hi Support Team,

I have a install problem, At first time I installed B1InterCompany have error for this

"Could not connect to database with current database information,please enter database connection information and restarted the addon"

and when I click button other screen need to key in my database username and password and connect test It's successful, but the ERROR say "Unable to find Configuration pls started addon" like when I clink OK.

Finally, I restarted addon system message suggest me to connect supply, and show the last ERROR to me "The entry already exist" when I click OK.

thanks for any response and suggestion.