DB fix

Author: SongDerrick

backend/routes/problemset.js

@@ -41,6 +41,7 @@ router.get('/:id', async function(req, res, next) {
 router.get('/:id/:problem', function(req, res, next) {
     const userName = req.params.id
     const problem = req.params.problem
+    const db = new sqlite3.Database('./db/O2ARC.db');
 
     console.log(userName, problem)
     const query = 'SELECT content FROM tasklist WHERE id = ?';