That’s really not much more information to go on.
A trigger may automatically suspend depending on its configuration. The Suspend on Error setting will indicate that. What may be happening is that the trigger service fails during the night (perhaps a DB is taken off-line?) and so the trigger is suspended–like it was configured to do.
Of course this is speculation, since there is still zero information about your triggers other than they get suspended every day.
#Integration-Server-and-ESB#webMethods#Universal-Messaging-Broker#broker