phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c18b56cf6bd95afa3f20ce7f723782b9' 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 ('c18b56cf6bd95afa3f20ce7f723782b9', -1, 1757180749, 1757180749, 'd849d888', -9, 0, 0)

Line : 187
File : sessions.php