phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ba6b778bf0c24eb21c9ea803a00d29a4' 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 ('ba6b778bf0c24eb21c9ea803a00d29a4', -1, 1773074557, 1773074557, 'd849d89c', -4, 0, 0)

Line : 187
File : sessions.php