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")=(a1e9f7c7ca744e8da54eca3c72e30a64) 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 ('a1e9f7c7ca744e8da54eca3c72e30a64', -1, 1715641676, 1715641676, '7f000001', -4, 0, 0)

Line : 187
File : sessions.php