[Koha] problem in version koha 3.18.11

I have update to koha 3.18.11 when i update the system can't send overdue email to patron so before i update to this version system working god for sending overdue mail and email for patron register, so i want to know how solve of this version bug. Ahmad Nasser koha system administrator future university in Egypt -- View this message in context: http://koha.1045719.n5.nabble.com/problem-in-version-koha-3-18-11-tp5874454.... Sent from the Koha-general mailing list archive at Nabble.com.