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 ('ed6d9646b3c5ac996a3bca0e8dac6f3e', -1, 1527414426, 1527414426, '36a7d8ef', 0, 0, 0)

Line : 187
File : sessions.php