need_recalc if no file for recalc

app.py

@@ -130,10 +130,10 @@ if __name__ == "__main__":
     try:
         with open(PERSISTENT_FILE_CHECK_PATH, "r", encoding="utf-8") as f:
             need_recalc = f.read() == "1"
-        with open(PERSISTENT_FILE_CHECK_PATH, "w", encoding="utf-8") as f:
-            f.write("0")
     except FileNotFoundError:
-        pass
+        need_recalc = True
+    with open(PERSISTENT_FILE_CHECK_PATH, "w", encoding="utf-8") as f:
+        f.write("0")
 
     if need_recalc:
         API.upload_file(