Error:
The database was backed up on a server running version 16.00.1135. This version is incompatible with the current server, which is running version 13.00.4001. Please either restore the database on a server that is compatible with the backup or use a backup that is compatible with this server. RESTORE DATABASE has terminated abnormally.
Cause of the issue:
This issue typically occurs while restoring the Webgility Desktop database through the classical method. This can usually occur while migrating the Webgility Desktop database to a new machine or restoring an older backup on the existing one. The error indicates that the database backup file you are trying to restore is not compatible with the version of the SQL Server installed.
NOTE: A database backup taken from a lower SQL Server version can be restored on a higher version, but a backup from a higher version cannot be restored on a lower version.
Steps to fix:
Check and verify the SQL Server version on which the Webgility Desktop Database backup file was created. Once verified then download and install the same version on the new machine. Once done then try to restore the database again.
In case if the issue still persists then download the latest version of the SQL Server (express edition) available and install it. Once done then try to restore the database.
Follow the steps in this helpful article on How to Manually Install SQL
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If the problem persists, contact Webgility Support for further assistance.