phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88ffcce809b63aa977a98b6d92a0adf4' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('88ffcce809b63aa977a98b6d92a0adf4', -1, 1753491757, 1753491757, 'd849d877', -4, 0, 0)

Line : 187
File : sessions.php