fix case where fallback does not trigger (#750)

Author: d4mr

src/server/routes/contract/read/read.ts

@@ -43,7 +43,7 @@ export async function readContract(fastify: FastifyInstance) {
         contractAddress,
       });
 
-      let parsedArgs: unknown[] | undefined = [];
+      let parsedArgs: unknown[] | undefined;
 
       try {
         const jsonStringArgs = `[${args}]`;