phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '90e8417588bf66877ccc345abd89e688' 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 ('90e8417588bf66877ccc345abd89e688', -1, 1768196510, 1768196510, 'd849d887', 2, 0, 0)

Line : 187
File : sessions.php