fix cat_id

app/service/course/v3/institution.js

@@ -678,7 +678,7 @@ class InstitutionSubService extends Service {
     const page = Number(input.page) || 1;
     const limit = Number(input.limit) || 2;
     const offset = (page - 1) * limit;
-    const catId = Number(input.catId) || 0;
+    const catId = Number(input.cat_id) || 0;
     let catIds = [];
     const filter = { where: { status: 'online', is_deleted: 0 }, order: [[ 'sort', 'asc' ]], limit, offset };