changed proxy pool

proxy_pool.py

@@ -170,6 +170,11 @@ class ProxyPool:
             if not self.available_proxies:
                 print("No available proxies")
                 return None
+            
+            # Ensure current_index is within bounds
+            if self.current_index >= len(self.available_proxies):
+                self.current_index = 0
+                
             proxy = self.available_proxies[self.current_index]
             self.current_index = (self.current_index + 1) % len(self.available_proxies)
             return proxy