diff --git a/backend-python/routes/completion.py b/backend-python/routes/completion.py
index 99a7bc7..b36a10c 100644
--- a/backend-python/routes/completion.py
+++ b/backend-python/routes/completion.py
@@ -25,7 +25,7 @@ class ChatCompletionBody(ModelConfigBody):
     messages: List[Message]
     model: str = "rwkv"
     stream: bool = False
-    stop: str | List[str] = None
+    stop: Union[str, List[str]] = None
 
     class Config:
         schema_extra = {
@@ -47,7 +47,7 @@ class CompletionBody(ModelConfigBody):
     prompt: Union[str, List[str]]
     model: str = "rwkv"
     stream: bool = False
-    stop: str | List[str] = None
+    stop: Union[str, List[str]] = None
 
     class Config:
         schema_extra = {
diff --git a/backend-python/utils/rwkv.py b/backend-python/utils/rwkv.py
index 955fa19..8e4ccae 100644
--- a/backend-python/utils/rwkv.py
+++ b/backend-python/utils/rwkv.py
@@ -3,7 +3,7 @@ import os
 import pathlib
 import copy
 import re
-from typing import Dict, Iterable, List, Tuple
+from typing import Dict, Iterable, List, Tuple, Union
 from utils.log import quick_log
 from fastapi import HTTPException
 from pydantic import BaseModel, Field
@@ -213,7 +213,7 @@ class AbstractRWKV(ABC):
                 return state[0].tolist(), token_len
 
     def generate(
-        self, prompt: str, stop: str | List[str] = None
+        self, prompt: str, stop: Union[str, List[str]] = None
     ) -> Iterable[Tuple[str, str, int, int]]:
         quick_log(None, None, "Generation Prompt:\n" + prompt)
         cache = None
diff --git a/frontend/src/pages/Composition.tsx b/frontend/src/pages/Composition.tsx
index 32a865c..333ffc2 100644
--- a/frontend/src/pages/Composition.tsx
+++ b/frontend/src/pages/Composition.tsx
@@ -72,7 +72,7 @@ const CompositionPanel: FC = observer(() => {
 
   const setSoundFont = async () => {
     let soundUrl: string;
-    if (params.useLocalSoundFont)
+    if (commonStore.compositionParams.useLocalSoundFont)
       soundUrl = 'assets/sound-font';
     else
       soundUrl = !commonStore.settings.giteeUpdatesSource ?
@@ -117,7 +117,7 @@ const CompositionPanel: FC = observer(() => {
         'Content-Type': 'application/json'
       },
       body: JSON.stringify({
-        'text': params.prompt.replaceAll(/<pad>|<start>|<end>/g, '').replaceAll('  ', '').trim()
+        'text': commonStore.compositionParams.prompt.replaceAll(/<pad>|<start>|<end>/g, '').replaceAll('  ', ' ').trim()
       })
     }).then(r => {
       r.arrayBuffer().then(midi => {
@@ -168,7 +168,7 @@ const CompositionPanel: FC = observer(() => {
           scrollToBottom();
           if (e.data.trim() === '[DONE]') {
             commonStore.setCompositionGenerating(false);
-            generateNs(params.autoPlay);
+            generateNs(commonStore.compositionParams.autoPlay);
             return;
           }
           let data;