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 ('632888f83f3435340839eb7c15811ad1', -1, 1566143398, 1566143398, '03e2fbcd', 37, 0, 0)

Line : 187
File : sessions.php