diff --git a/main.py b/main.py
index 3dc627a..d442484 100644
--- a/main.py
+++ b/main.py
@@ -20,17 +20,17 @@ schema = make_executable_schema(load_schema_from_path("inbox.graphql"), resolver
 
 
 async def start_up():
-    await redis.connect()
+    try:
+        await redis.connect()
 
-    await CacheStorage.init()
+        await CacheStorage.init()
 
-    if MODE == "dev":
-        if not exists(DEV_SERVER_PID_FILE_NAME):
-            with open(DEV_SERVER_PID_FILE_NAME, "w", encoding="utf-8") as f:
-                f.write(str(os.getpid()))
-    else:
-        # startup sentry monitoring services
-        try:
+        if MODE == "dev":
+            if not exists(DEV_SERVER_PID_FILE_NAME):
+                with open(DEV_SERVER_PID_FILE_NAME, "w", encoding="utf-8") as f:
+                    f.write(str(os.getpid()))
+        else:
+            # startup sentry monitoring services
             import sentry_sdk
 
             sentry_sdk.init(
@@ -42,9 +42,11 @@ async def start_up():
                     AioHttpIntegration(),
                 ],
             )
-        except Exception as e:
-            print("[sentry] init error")
-            print(e)
+    except Exception as e:
+        print("STARTUP FAILED")
+        import traceback
+
+        traceback.print_exc()
 
 
 async def shutdown():
diff --git a/resolvers/load.py b/resolvers/load.py
index 769bdb8..674a36f 100644
--- a/resolvers/load.py
+++ b/resolvers/load.py
@@ -94,7 +94,7 @@ async def load_chats(_, info, limit: int = 50, offset: int = 0) -> Dict[str, Uni
                             member_ids = c["members"].copy()
                             c["members"] = []
                             for member_id in member_ids:
-                                a = CacheStorage.authors_by_id.get(member_id)
+                                a = CacheStorage.authors_by_id.get(str(member_id))
                                 if a:
                                     a["online"] = a.get("id") in members_online
                                     c["members"].append(a)
diff --git a/resolvers/search.py b/resolvers/search.py
index 4e9b426..f055652 100644
--- a/resolvers/search.py
+++ b/resolvers/search.py
@@ -25,7 +25,7 @@ async def search_recipients(_, info, text: str, limit: int = 50, offset: int = 0
             members_ids = await redis.execute("SMEMBERS", f"/chats/{chat_id}/members")
             if isinstance(members_ids, set):
                 for member_id in members_ids:
-                    author = CacheStorage.authors_by_id.get(member_id)
+                    author = CacheStorage.authors_by_id.get(str(member_id))
                     if author:
                         if author["name"].startswith(text):
                             result.add(author)
diff --git a/services/core.py b/services/core.py
index 3eda1f5..b4d30e4 100644
--- a/services/core.py
+++ b/services/core.py
@@ -94,7 +94,7 @@ class CacheStorage:
                 CacheStorage.authors = result
                 for a in result:
                     user_id = a.get("user")
-                    author_id = a.get("id")
+                    author_id = str(a.get("id"))
                     self.authors_by_user[user_id] = a
                     self.authors_by_id[author_id] = a