B4R Question Error handling in b4R, how to catch?

Private const MAGIC_EEPROM As Byte = 213

Public Sub GetStoredDataLength As Byte
    Dim header() As Byte = eeprom.ReadBytes(0, 2)
'    Log("header lu=",header(0),"+",header(1))
    If header(0) = MAGIC_EEPROM Then
        Return header(1)
    End If
    Return 0
End Sub

Sub    GetStoredData As Byte
    Dim length As Byte = GetStoredDataLength    
'    Log("length wifi=",length)
    If length > 0 Then
        Dim ObjectsBuffer(18) As Object
        Dim Data() As Byte = eeprom.ReadBytes(2, length)
        Dim Objects() As Object = sr.ConvertBytesToArray(Data, ObjectsBuffer)
        If Objects.Length <> 0 Then
'          For Each o As Object In Objects
'            Log("obj_wifi",o)
'          Next
          For i = 0 To 17
          GStore1.Put(i,Objects(i))
          Next
          Return 1
        Else 
          Return 0
        End If    
    Else
        Return 0    
    End If          
End Sub

Public Sub SaveNetworkDetails(Data() As Byte)
    Log("Saving Network data")
    Log("data length: ", Data.Length)
'    Log("data to eeprom=",Data)
    eeprom.WriteBytes(Array As Byte(MAGIC_EEPROM, Data.Length), 0)
    eeprom.WriteBytes(Data, 2)
 '   ConnectToNetwork
End Sub