phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f6cb13ffc90e2c423e4241d9e8610fe8' 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 ('f6cb13ffc90e2c423e4241d9e8610fe8', -1, 1767334882, 1767334882, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php