phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9913242567b608e8526767f99f0dde2e' 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 ('9913242567b608e8526767f99f0dde2e', -1, 1771000346, 1771000346, 'd849d809', -4, 0, 0)

Line : 187
File : sessions.php