phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f26db70cb493d049533452ea7e71bf5a' 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 ('f26db70cb493d049533452ea7e71bf5a', -1, 1772770995, 1772770995, 'd849d8ab', -4, 0, 0)

Line : 187
File : sessions.php