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 ('95f9d2ed79ce5ab6ca71c3c8ec450289', -1, 1508831519, 1508831519, '36e12f5e', 16, 0, 0)

Line : 187
File : sessions.php