phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'aeb6a74d7cefb57dea0fad1ffc96bb55' 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 ('aeb6a74d7cefb57dea0fad1ffc96bb55', -1, 1767314715, 1767314715, 'd849d819', 1, 0, 0)

Line : 187
File : sessions.php