Multiple connection to a server or shared resource by the same user, using more than one username, are not allowed. Disconnect all previous connection
1) Look at the sessions that are simultaneously running. On a Windows machine, Run -> ‘net use’. This will list all the connections.
2) Ensure that you dont access the shared drive when the program is running.(to avoid starting a new connection)
3) Delete all the connections to the storage. Better still, do a ‘net use * /delete’
I hope that this will resolve the issue as it happens with me.