What to do? Task emails have stopped being sent

Everything worked OK. [file]23822[/file] [file]23823[/file] I noticed that emails were no longer being sent automatically when moving through process statuses. [file]23822[/file] [file]23823[/file] Checked on the tasks today. [file]23822[/file] [file]23823[/file] Letters are not sent. [file]23822[/file] [file]23823[/file] API logs are not appearing [file]23822[/file] [file]23823[/file] Accordingly, there are also no events [file]23822[/file] [file]23823[/file] It is important that I did not make any changes to the settings. [file]23822[/file] [file]23823[/file] Please help fix the problem. [file]23822[/file] [file]23823[/file] [file]23822[/file] [file]23823[/file] [file]23822[/file] [file]23823[/file]