phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '97f4e6c8328ebb7fb189e096609955ae' 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 ('97f4e6c8328ebb7fb189e096609955ae', -1, 1766532001, 1766532001, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php