phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c0b2a78f9cb7eae2087b9f5656e41a2e' 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 ('c0b2a78f9cb7eae2087b9f5656e41a2e', -1, 1769360257, 1769360257, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php