phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c1a1c9abdffd3a0ea2310d648f2842cc' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c1a1c9abdffd3a0ea2310d648f2842cc', -1, 1714232839, 1714232839, '12760992', -7, 0, 0)

Line : 187
File : sessions.php