Merge pull request #258 from MohammedBashiru/gh-momo-crash-fix

Ghana mobile money crash fix

Author: jeremiahAI

rave_presentation/src/main/java/com/flutterwave/raveandroid/rave_presentation/ghmobilemoney/GhMobileMoneyHandler.java

@@ -135,7 +135,7 @@ public void requeryTx(final String flwRef, final String txRef, final String publ
         body.setTx_ref(txRef);
         body.setPBFPubKey(publicKey);
 
-        if (data.getProvider() != null && data.getProvider().equalsIgnoreCase(RaveConstants.eTransact_GH)){
+        if (data != null && data.getProvider() != null && data.getProvider().equalsIgnoreCase(RaveConstants.eTransact_GH)){
             mInteractor.showPollingIndicator(true, data.getValidateInstructions());
         }else{
             mInteractor.showPollingIndicator(true, "");