phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c2724536593cdb9721526ccc70c464a4' 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 ('c2724536593cdb9721526ccc70c464a4', -1, 1768523274, 1768523274, '12610e50', -7, 0, 0)

Line : 187
File : sessions.php