phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6e2a30c756c2c15b0b73ec2151d5d480' 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 ('6e2a30c756c2c15b0b73ec2151d5d480', -1, 1766258078, 1766258078, 'd849d819', -9, 0, 0)

Line : 187
File : sessions.php