phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c7b8857cef31115ec9bb0787b11a0794' 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 ('c7b8857cef31115ec9bb0787b11a0794', -1, 1711710684, 1711710684, '22e64d43', 4, 0, 0)

Line : 187
File : sessions.php