Hello Mirlynn,
Can you please tell us your SQLyog version? We have fixed an issue regarding memory leak as well as a crash in Session restore when writing a restore point in SQLyog v12.17.
The session details are stored in the “connrestore.db” file. Please note, by clearing the session details, you will loose all the unsaved data. You can clear the session details by deleting the file “connrestore.db” from the filepath “C:UsersAppDataRoamingSQLyog“.