phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8f89508223a29b4279c91a748fda8ad' 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 ('c8f89508223a29b4279c91a748fda8ad', -1, 1767129532, 1767129532, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php