Seaquel
SQL Server error code

SQL Server error 1053

SQL Server raises error 1053 at severity 15, which marks a problem with the query or data that you can correct.

For DROP STATISTICS, you must provide both the object (table or view) name and the statistics name, in the form "objectname.statisticsname".
Msg1053
Severity15
Group1000–1999

Source: Database Engine events and errors