Notice (8): Undefined variable: fbconfig [APP/View/Registers/index.ctp, line 140]
Notice (8): Undefined variable: g_config [APP/View/Registers/index.ctp, line 143]
Notice (8): Undefined variable: fbconfig [APP/View/Registers/index.ctp, line 149]
Notice (8): Undefined variable: g_config [APP/View/Registers/index.ctp, line 149]

Answer simple math:

17 + 2 = ?