diff --git a/nonebot/config.py b/nonebot/config.py
index c8d2cc19..818f7c36 100644
--- a/nonebot/config.py
+++ b/nonebot/config.py
@@ -29,6 +29,9 @@ from pydantic.env_settings import (
     env_file_sentinel,
 )
 
+from nonebot.log import logger
+from nonebot.utils import escape_tag
+
 
 class CustomEnvSettings(EnvSettingsSource):
     def __call__(self, settings: BaseSettings) -> Dict[str, Any]:
@@ -90,9 +93,11 @@ class CustomEnvSettings(EnvSettingsSource):
                     env_val = env_vars[env_name]
                 try:
                     if env_val:
-                        env_val = settings.__config__.json_loads(env_val)
+                        env_val = settings.__config__.json_loads(env_val.strip())
                 except ValueError as e:
-                    pass
+                    logger.opt(colors=True, exception=e).trace(
+                        f"Error while parsing JSON for {escape_tag(env_name)}. Assumed as string."
+                    )
 
                 d[env_name] = env_val
 
diff --git a/nonebot/drivers/aiohttp.py b/nonebot/drivers/aiohttp.py
index c2e50481..243de63d 100644
--- a/nonebot/drivers/aiohttp.py
+++ b/nonebot/drivers/aiohttp.py
@@ -72,16 +72,16 @@ class Mixin(ForwardMixin):
         else:
             raise RuntimeError(f"Unsupported HTTP version: {setup.version}")
 
-        session = aiohttp.ClientSession(version=version, trust_env=True)
-        async with session.ws_connect(
-            setup.url,
-            method=setup.method,
-            timeout=setup.timeout or 10,
-            headers=setup.headers,
-            proxy=setup.proxy,
-        ) as ws:
-            websocket = WebSocket(request=setup, session=session, websocket=ws)
-            yield websocket
+        async with aiohttp.ClientSession(version=version, trust_env=True) as session:
+            async with session.ws_connect(
+                setup.url,
+                method=setup.method,
+                timeout=setup.timeout or 10,
+                headers=setup.headers,
+                proxy=setup.proxy,
+            ) as ws:
+                websocket = WebSocket(request=setup, session=session, websocket=ws)
+                yield websocket
 
 
 class WebSocket(BaseWebSocket):
diff --git a/nonebot/message.py b/nonebot/message.py
index a3b41a17..6611598b 100644
--- a/nonebot/message.py
+++ b/nonebot/message.py
@@ -303,7 +303,12 @@ async def handle_event(bot: "Bot", event: "Event") -> None:
                 return
 
         # Trie Match
-        TrieRule.get_value(bot, event, state)
+        try:
+            TrieRule.get_value(bot, event, state)
+        except Exception as e:
+            logger.opt(colors=True, exception=e).warning(
+                "Error while parsing command for event"
+            )
 
         break_flag = False
         for priority in sorted(matchers.keys()):