[BUG] Empty string is not a valid UINT32
[BUG] Empty string is not a valid UINT32

lumberj/ripple-rest,xdv/ripple-rest,hserang/ripple-rest,sparro/ripple-rest,Treefunder/ripple-rest,ripple/ripple-rest,sparro/ripple-rest,dinexcode/ripple-rest-dinex,radr/radr-rest,bankonme/ripple-rest