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)=(9f18a51035b29f5cb194dce75c352bf2) 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 ('9f18a51035b29f5cb194dce75c352bf2', -1, 1714037429, 1714037429, '12bc2cdf', 121, 0, 0)

Line : 187
File : sessions.php