Strange failure on bridge rectifier
I am not condoning the construction of this dangerous and inefficient circuit, however if you must, it's better to have the resistors in series with the input. Your D3 is doing nothing of value so lose that.



simulate this circuit &ndash; Schematic created using CircuitLab
So the voltage across the bridge is reduced and any mains transients (which could destroy the bridge) will appear across the resistors. The resistor should be of a fusible flameproof type rated for appropriate mains surge voltage (kV not just hundreds of volts).
Better yet, as this circuit can cause lethal shock or cause a fire when inappropriately designed, constructed or used, just don't do it.