phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '72338c6658e815fbbed4de38fdedfc20' 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 ('72338c6658e815fbbed4de38fdedfc20', -1, 1524692188, 1524692188, '3650738c', 0, 0, 0)

Line : 187
File : sessions.php