Banque Laurentienne – ATM’s down Thursday evenings?

It is the second time that Banque Laurentienne’s ATM’s are down on a Thursday at around 9:00pm. Are they doing maintenance at that time? Is their network so weak that it crashes on Thursdays when people get paid? Do they run Windows on their ATM’s and have to disable them while they deploy a security fix?

How is someone supposed to trust having access to their money if needed when the banks are closed and the ATM’s crash all the time?