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 ('b5693f3ffbc174d1d801a673c1181252', -1, 1519238261, 1519238261, '36e22175', -8, 0, 0)

Line : 187
File : sessions.php