these my function what is mistake const createProblem=async(req,res)=>{
const {title,description, difficulty,tags,visibleTestCases,hiddenTestCase,
startCode,referenceSolution,problemCreator
}=req.body;
try{
for(const {language, compeletCode} of referenceSolution){
const languageId=getLanguageById(language);
const submissions=visibleTestCases.map((testcase)=>({
source_code: compeletCode,
language_id: languageId,
stdin: testcase.input,
expected_output: testcase.output
}))
const submitResult=await submitBatch(submissions);