phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '87baa8d2f8885128ec2643a0af0b8743' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('87baa8d2f8885128ec2643a0af0b8743', -1, 1771454194, 1771454194, 'd849d876', 2, 0, 0)

Line : 187
File : sessions.php