Error 1 occurred at Scan From String (arg 1)

Hey,

I'm working on a project where I'm using LabVIEW. 

The objective is to send numbers to LabVIEW via Bluetooth. In LabVIEW, these numbers should create a graph but are not doing so. The error is:

Error 1 occured at Scan From String (arg 1)

Possible reason(s): 

LabVIEW: An input parameter is invalid. For example, if the input is a path, the path might contain a character not allowed by the OS such as ? or @.

Attached is my project , the error 's printscreen and a file from RCOM Serial where it can see the numbers that I want.