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 ('e06c25b68e0976620a67f3f9d3fa87b9', -1, 1534336072, 1534336072, '365066aa', -11, 0, 0)

Line : 187
File : sessions.php