RCTCallableJSModules is not set. This is probably because you've explicitly synthesized the RCTCallableJSModules in SearchWithSpotlight, even though it's inherited from RCTEventEmitter.
- (void)sendEventWithName:(NSString *)eventName body:(id)body
{
RCTAssert(
_callableJSModules != nil,
@"Error when sending event: %@ with body: %@. ""RCTCallableJSModules is not set. This is probably because you've ""explicitly synthesized the RCTCallableJSModules in %@, even though it's inherited ""from RCTEventEmitter.",
eventName,
body,
[selfclass]);
....