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 ('4d37a16e3c4c6343b8ad60800f9dd295', -1, 1501001386, 1501001386, '369e0798', 4, 0, 0)

Line : 187
File : sessions.php