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 ('84563928022614260bac3e136c195d58', -1, 1511474988, 1511474988, '36a2f128', -8, 0, 0)

Line : 189
File : sessions.php