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 ('dc91ba671735c10bbf1ee053ac4f881b', -1, 1519120453, 1519120453, '36a71dd0', 1, 0, 0)

Line : 187
File : sessions.php