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 ('6dc82b0056cbafd275e219034a91fc60', -1, 1513134840, 1513134840, '36e37e45', -4, 0, 0)

Line : 211
File : sessions.php