fix access of undefined property

src/hooks/useSwapCallback.ts

@@ -142,7 +142,7 @@ export function swapErrorToUserReadableMessage(error: any): string {
   let reason: string | undefined
   while (Boolean(error)) {
     reason = error.reason ?? error.message ?? reason
-    error = error.error ?? error.data.originalError
+    error = error.error ?? error.data?.originalError
   }
 
   if (reason?.indexOf('execution reverted: ') === 0) reason = reason.substr('execution reverted: '.length)