Seaquel
SQLite error code

SQLITE_CONSTRAINT_PRIMARYKEY

SQLITE_CONSTRAINT_PRIMARYKEY is SQLite result code 1555, an extended code of SQLITE_CONSTRAINT.

Result code1555
NameSQLITE_CONSTRAINT_PRIMARYKEY
Primary codeSQLITE_CONSTRAINT

What it means

The SQLITE_CONSTRAINT_PRIMARYKEY error code is an extended error code for SQLITE_CONSTRAINT indicating that a PRIMARY KEY constraint failed.

Source: SQLite Result and Error Codes