phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b7b86aef9bddd06a4b849fcb4a4b87b6' 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 ('b7b86aef9bddd06a4b849fcb4a4b87b6', -1, 1711690739, 1711690739, '2cc8c426', -9, 0, 0)

Line : 187
File : sessions.php