phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '88b7c985ec08239b21598b4d8f28494c' 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 ('88b7c985ec08239b21598b4d8f28494c', -1, 1752155075, 1752155075, 'd849d808', -4, 0, 0)

Line : 215
File : sessions.php