phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '63979f6d586294f26bf9f15b86882e41' 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 ('63979f6d586294f26bf9f15b86882e41', -1, 1767120297, 1767120297, 'd849d819', 8, 0, 0)

Line : 187
File : sessions.php