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 ('abf8ed9599b8b267c8d70928f708bba5', -1, 1537319298, 1537319298, '3650537b', -1, 0, 0)

Line : 187
File : sessions.php