Fixed error in /trainer with center filter

server/src/routes/trainer/trainer.ts

@@ -37,7 +37,7 @@ router.get("/trainer", async (req: Request, res: Response) => {
         SELECT trainers.id, first_name, last_name, center_id, centers.name as center_name FROM trainers
         JOIN users ON trainers.user_id = users.id
         JOIN centers on trainers.center_id = centers.id
-        WHERE trainers.id = ANY($1) OR $2
+        WHERE centers.id = ANY($1) OR $2
         ORDER BY first_name ASC;
         `, [
             trainerFilters.center !== undefined ? trainerFilters.center : [],