phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cf8858cb4e350f9e3d0ebf9ed9704922', -1, 1566524541, 1566524541, '22cca94c', 19, 0, 0)

Line : 189
File : sessions.php