我想接到CC上，然后ccs上能拉去到模型，也能测试，但实际用的时候就会报错，错误如下，status_code=500, Format mismatch: Request appears to be in format [‘claude_chat’], but only [[‘openai_chat’]] is allowed. 
我是怀疑ccs的请求路径不对，ccs的请求路径是/v1/messages，然后中转站上面写的是/v1/chat/completions，我也试过修改成openai（路由那个），反正不管怎么折腾，要么500报错，要么这个报错There’s an issue with the selected model (deepseek-v4-pro). It may not exist or you may not have access to it. Run 
/model ...