phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e17315ab8d0f61ee90ef4f3ede9cf715' 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 ('e17315ab8d0f61ee90ef4f3ede9cf715', -1, 1770499640, 1770499640, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php