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 ('760d7a46cc030a8c184c7165e974446e', -1, 1516193844, 1516193844, '36c4875a', 12, 0, 0)

Line : 187
File : sessions.php