phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dc4523252e4f2e67c2b61e0ef8f6a98d' 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 ('dc4523252e4f2e67c2b61e0ef8f6a98d', -1, 1768309258, 1768309258, '126109aa', -1, 0, 0)

Line : 187
File : sessions.php