phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6d14b9ed9ca7a69bd3186d6a22abed50' 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 ('6d14b9ed9ca7a69bd3186d6a22abed50', -1, 1771788425, 1771788425, '2d971ed8', -2, 0, 0)

Line : 187
File : sessions.php