phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : -1 ERROR: duplicate key value violates unique constraint "phpbb_session_pkey" DETAIL: Key (session_id)=(0788b857894503249b74d0b5c5ffb520) already exists.

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('0788b857894503249b74d0b5c5ffb520', -1, 1714279280, 1714279280, '03836ea9', -4, 0, 0)

Line : 187
File : sessions.php