diff --git a/backend/config.py b/backend/config.py
index 4e31b09..12af111 100644
--- a/backend/config.py
+++ b/backend/config.py
@@ -44,7 +44,7 @@ proxy_server = os.environ.get("PROXY_SERVER")
 class ProxyCreateLink(pydantic.BaseModel):
     upstream: pydantic.HttpUrl
     ctype: Optional[pydantic.StrictStr]
-    region: pydantic.StrictStr
+    region: Optional[pydantic.StrictStr]
 
 
 class ProxyRequest(pydantic.BaseModel):
@@ -75,10 +75,16 @@ class ProxyElem:
         for url in urls:
             if isinstance(url, tuple):
                 clean_urls.append(url[0])
-                link_requests.append(ProxyCreateLink.parse_obj({"upstream": url[0], "ctype": url[1], "region": self.region}))
+                link_requests.append(
+                    ProxyCreateLink.parse_obj(
+                        {"upstream": url[0], "ctype": url[1], "region": self.region}
+                    )
+                )
             else:
                 clean_urls.append(url)
-                link_requests.append(ProxyCreateLink.parse_obj({"upstream": url, "region": self.region}))
+                link_requests.append(
+                    ProxyCreateLink.parse_obj({"upstream": url, "region": self.region})
+                )
         if not isinstance(proxy_server, str):
             return clean_urls
 
@@ -86,7 +92,9 @@ class ProxyElem:
         response_data: ProxyResponse
 
         try:
-            request_data = ProxyRequest.parse_obj({"urls": link_requests, "action": "create-urls"})
+            request_data = ProxyRequest.parse_obj(
+                {"urls": link_requests, "action": "create-urls"}
+            )
         except pydantic.ValidationError as e:
             logger.info(e)
             return clean_urls
@@ -94,7 +102,9 @@ class ProxyElem:
         try:
             async with self.local() as session:
                 resp = await session.post(proxy_server, json=request_data)
-                response_data = cast(ProxyResponse, ProxyResponse.parse_obj(await resp.text()))
+                response_data = cast(
+                    ProxyResponse, ProxyResponse.parse_obj(await resp.text())
+                )
         except Exception as e:
             logger.info(e)
         else: