phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'edc6836d6c6da6c6a3342ab90c7e6c50' 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 ('edc6836d6c6da6c6a3342ab90c7e6c50', -1, 1769852449, 1769852449, 'd849d851', -4, 0, 0)

Line : 187
File : sessions.php