phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 23000 [Microsoft][ODBC SQL Server Driver][SQL Server]Violation of PRIMARY KEY constraint 'PK_phpbb_sessions'. Cannot insert duplicate key in object 'dbo.phpbb_sessions'. The duplicate key value is (8646d12f3970b3656142f26998a4dee3).

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8646d12f3970b3656142f26998a4dee3', -1, 1711656480, 1711656480, '035938e4', 5, 0, 0)

Line : 187
File : sessions.php