phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '2b5d99458eb68f88d0e0736e75300655' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2b5d99458eb68f88d0e0736e75300655', -1, 1547663711, 1547663711, '22e0663c', -4, 0, 0)

Line : 174
File : sessions.php