phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8388d6c1b96b2a050b59c8899e4cfc2' for key 'PRIMARY'

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c8388d6c1b96b2a050b59c8899e4cfc2', -1, 1714331164, 1714331164, '1276b8ed', -4, 0, 0)

Line : 187
File : sessions.php