I faced database Synch Error after deploying latest code to my Onebox VM.
The internal time zone version number stored in the database is higher than the version supported by the kernel (15/13). Use a newer Microsoft Dynamics 365 for Finance and Operations kernel
Open local Database in SQL server management Studio
And run following Query on AXDB.
update SQLSystemVariables set VALUE = 7 where parm =’SYSTIMEZONESVERSION’