phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a15aa15652d7c183437ab1e195a35c99' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a15aa15652d7c183437ab1e195a35c99', -1, 1715883757, 1715883757, '1277d56e', 0, 0, 0)

Line : 187
File : sessions.php