phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ec86d524eb6f4d9b0bc1d1b3d8e263cd' 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 ('ec86d524eb6f4d9b0bc1d1b3d8e263cd', -1, 1766002537, 1766002537, 'd849d824', -4, 0, 0)

Line : 187
File : sessions.php