Not all of my colleagues can assist me

[MiryamLafaille]

I use MySQL 5.7 only in a week. I'm a novice on this software. Unfortunately, some hours ago computer hasn't started my database. I as soon as possible want to get all the data back from there.

 

[Rabinovic]

Which error code it returns? any log files?
Data data data I cannot make bricks without clay(c)