diff --git a/vllm_ascend/device_allocator/camem.py b/vllm_ascend/device_allocator/camem.py
index d34c319..7592a04 100644
--- a/vllm_ascend/device_allocator/camem.py
+++ b/vllm_ascend/device_allocator/camem.py
@@ -60,7 +60,8 @@ try:
     lib_name = find_loaded_library("vllm_ascend_C")
     camem_available = True
 except ImportError as e:
-    logger.error("Failed to import vllm_ascend_C:%s", e)
+    logger.warning(
+        "Failed to import vllm_ascend_C:%s. Sleep mode will be disabled. ", e)
     init_module = None
     python_create_and_map = None
     python_unmap_and_release = None
diff --git a/vllm_ascend/platform.py b/vllm_ascend/platform.py
index 28cda89..a7b7079 100644
--- a/vllm_ascend/platform.py
+++ b/vllm_ascend/platform.py
@@ -31,13 +31,11 @@ CUSTOM_OP_ENABLED = False
 try:
     # register custom ops into torch_library here
     import vllm_ascend.vllm_ascend_C  # type: ignore  # noqa: F401
-
-except ImportError:
-    logging.warning(
-        "Warning: Failed to register custom ops, all custom ops will be disabled"
-    )
-else:
     CUSTOM_OP_ENABLED = True
+except ImportError as e:
+    logging.warning(
+        "Failed to import 'vllm_ascend.vllm_ascend_C': %s. All custom ops will be disabled. ",
+        e)
 
 if TYPE_CHECKING:
     from vllm.config import ModelConfig, VllmConfig