Warning: Trying to access array offset on value of type null in /var/www/html/app/profile.php on line 120

Warning: Undefined array key "user_id" in /var/www/html/app/profile.php on line 121

Warning: Undefined array key "user_id" in /var/www/html/app/profile.php on line 165

Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 51 near "AND subscribed_user_id = 0" in /var/www/html/app/profile.php:167 Stack trace: #0 /var/www/html/app/profile.php(167): mysqli_query(Object(mysqli), 'SELECT * FROM s...') #1 {main} thrown in /var/www/html/app/profile.php on line 167