Seaquel
SQL Server error code

SQL Server error 926

SQL Server raises error 926 at severity 14, which marks a problem with the query or data that you can correct.

Database '%.*ls' cannot be opened. It has been marked SUSPECT by recovery. See the SQL Server errorlog for more information.
Msg926
NameDB_SUSPECT
Severity14
Group0–999

What it means

The database is marked as suspect because it failed the recovery process that brings a database to a consistent transactional state. This can occur during the following operations:

Starting up an instance of SQL Server.

Attaching a database.

Using the RESTORE database or RESTORE LOG procedures.

Source: Database Engine events and errors