Crash on Iphone 5C version 10.3.3

[KanhaiyaCMDL]

public func renderer(_ renderer: SCNSceneRenderer, updateAtTime time: TimeInterval) {
//logger.logDebug("updateAtTime (time)")
if isResized {
prepareForResize()
isResized = false
} else {
DispatchQueue.main.asyncAfter(deadline: .now() + 5.0) {
self.effect.update(at: time) // Crash will be happen in this line
}
}
}