M-Files MailSender Event Handler Error

Hello everyone.

"No found adress on the ics json model."

"<MetadataEditor>, -, Script başlatma hata verdi. ((AfterCheckInChangesFinalize::Mechsoft.MailSender.MFEventHandlerAfterCheckInChangesFinalize: 106-654-9)) (0x800408BB)"

I am getting an error like above in M-Files. I get this error in all the libraries I use. I would be very happy if anyone who knows the cause of the problem could help me.

Thanks in advance for your help.