diff --git a/backend/src/main/java/cx/flamingo/analysis/cache/impl/RedisCacheService.java b/backend/src/main/java/cx/flamingo/analysis/cache/impl/RedisCacheService.java
index 1a5e45c..df25b82 100644
--- a/backend/src/main/java/cx/flamingo/analysis/cache/impl/RedisCacheService.java
+++ b/backend/src/main/java/cx/flamingo/analysis/cache/impl/RedisCacheService.java
@@ -47,6 +47,9 @@ protected String getHttpCachePath() {
     protected Long getInsertTime(String cachePath, String key) {
         String redisKey = buildRedisKey(cachePath, key);
         Object json = valueOps.get(redisKey + EXPIRATION_SUFFIX);
+        if (json == null) {
+            return 0L;
+        }
         Expiration expiration = gson.fromJson(json.toString(), Expiration.class);
         if (expiration != null) {
             return expiration.getTimestamp();
diff --git a/backend/src/main/java/cx/flamingo/analysis/graphql/QuerySerializer.java b/backend/src/main/java/cx/flamingo/analysis/graphql/QuerySerializer.java
index 62078ae..fe269ef 100644
--- a/backend/src/main/java/cx/flamingo/analysis/graphql/QuerySerializer.java
+++ b/backend/src/main/java/cx/flamingo/analysis/graphql/QuerySerializer.java
@@ -53,7 +53,7 @@ private void serializeArguments(StringBuilder builder, Map<String, Object> args)
         
         for (Map.Entry<String, Object> entry : args.entrySet()) {
             String value = entry.getValue() instanceof String 
-                ? entry.getValue().toString()  // Don't add extra quotes
+                ? "\"" + entry.getValue().toString() + "\""  // Add quotes for string values
                 : entry.getValue().toString();
             joiner.add(entry.getKey() + ": " + value);
         }
@@ -64,4 +64,4 @@ private void serializeArguments(StringBuilder builder, Map<String, Object> args)
     private StringBuilder appendIndent(StringBuilder builder) {
         return builder.append(" ".repeat(indent));
     }
-}
\ No newline at end of file
+}
diff --git a/backend/src/main/java/cx/flamingo/analysis/rate/GithubTokenRateManager.java b/backend/src/main/java/cx/flamingo/analysis/rate/GithubTokenRateManager.java
index ce61265..cbd1703 100644
--- a/backend/src/main/java/cx/flamingo/analysis/rate/GithubTokenRateManager.java
+++ b/backend/src/main/java/cx/flamingo/analysis/rate/GithubTokenRateManager.java
@@ -95,10 +95,6 @@ private void printTokensStatus() {
      * endpoint to get remaining requests and reset time.
      */
     public synchronized void initializeRateLimits() {
-        if (alreadyInitialized) {
-            return;
-        }
-        alreadyInitialized = true;
         for (Map.Entry<String, Pair<GithubToken, WebClient>> entry : tokenMap.entrySet()) {
             String token = entry.getKey();
             try {
@@ -123,6 +119,7 @@ public synchronized void initializeRateLimits() {
                         token.substring(0, 8), e.getMessage());
             }
         }
+        alreadyInitialized = true;
         printTokensStatus();
     }
 
diff --git a/backend/src/main/java/cx/flamingo/analysis/service/PreCacheService.java b/backend/src/main/java/cx/flamingo/analysis/service/PreCacheService.java
index e1db75b..354bf31 100644
--- a/backend/src/main/java/cx/flamingo/analysis/service/PreCacheService.java
+++ b/backend/src/main/java/cx/flamingo/analysis/service/PreCacheService.java
@@ -27,7 +27,7 @@ public class PreCacheService {
     CacheServiceAbs cacheService;
 
     // Always run the cache refresh cycle on startup
-    @Scheduled(initialDelay = 1000l, fixedDelay = 1000l)
+    @Scheduled(initialDelay = 1000l, fixedDelay = 3600000l)
     void runFullCacheCycle() {
         Instant startTime = Instant.now();
         log.info("Starting cache refresh cycle for all languages...");
@@ -53,3 +53,4 @@ void runFullCacheCycle() {
                 totalDuration.getSeconds() % 60);
     }
 }
+
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index fbb5307..63c6111 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1,5 +1,5 @@
 import { CssBaseline, ThemeProvider } from '@mui/material';
-import { useMemo, useEffect } from 'react';
+import { useMemo } from 'react';
 import { getTheme } from './theme';
 import { Layout } from './components/Layout';
 import { FiltersPanel } from './components/FiltersPanel';
@@ -26,10 +26,6 @@ const MainApp = () => {
 
   const { urlState } = useUrlState();
 
-  useEffect(() => {
-    console.log('App: URL state changed:', urlState);
-  }, [urlState]);
-
   const { data: contributors = [], isLoading, error } = useQuery({
     queryKey: [
       'contributors', 
@@ -40,13 +36,6 @@ const MainApp = () => {
       urlState.teamId
     ],
     queryFn: ({ signal }) => {
-      console.log('Fetching contributors with params:', {
-        cityId: urlState.selectedCityId,
-        regionId: urlState.selectedRegionId,
-        stateId: urlState.stateId,
-        languageId: urlState.languageId,
-        teamId: urlState.teamId
-      });
       return getContributors({
         cityId: urlState.selectedCityId || undefined,
         regionId: urlState.selectedRegionId || undefined,
@@ -88,3 +77,4 @@ export const App = () => {
 };
 
 export default App;
+
diff --git a/frontend/src/services/api.ts b/frontend/src/services/api.ts
index abe324a..20fe450 100644
--- a/frontend/src/services/api.ts
+++ b/frontend/src/services/api.ts
@@ -4,7 +4,7 @@ import { HiringManagerProfile, JobOpening } from '../types/hiring';
 
 // Configure axios to use the backend URL from environment
 const BACKEND_API_URL = process.env.BACKEND_API_URL || '/';
-console.log('API Service: Using backend URL:', BACKEND_API_URL);
+if (process.env.NODE_ENV !== 'production') { console.log('API Service: Using backend URL:', BACKEND_API_URL); }
 
 axios.defaults.baseURL = BACKEND_API_URL;
 
@@ -223,3 +223,4 @@ export const getJobOpenings = async (): Promise<JobOpening[]> => {
   }
   return response.data.data;
 }; // Force rebuild Sun Aug 31 19:49:51 EDT 2025
+