Help me to cope with the problem in my work

I have a problem working in the office, I can not open the service message to which access is necessary. An unexpected error prevented access to this file. We have at our office MS Outlook for Windows10 (64b). I tried to scan the disk for errors and ran the built-in restore utility but did not bring any result. Is there such a mistake from the past in today's time? Yes, the technical support service is very busy.