phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c4937ba1f6126f2b911ae9f095e1ccde' 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 ('c4937ba1f6126f2b911ae9f095e1ccde', -1, 1769424235, 1769424235, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php