Error CodeIgniter 3.1.4

Selamat siang semuanya mau nanya nih, tadi pas lagi pakai CodeIgniter muncul error begini , solusinya gimana ya ?

Fatal error: Call to a member function getMessage() on integer in /home/xxx/system/core/Common.php on line 65 A PHP Error was encountered Severity: Error Message: Call to a member function getMessage() on integer Filename: core/Common.php Line Number: 653 Backtrace: