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 ('cf3c788b0ac1c1202ece5208d25c8363', -1, 1529322452, 1529322452, '369e0f61', -11, 0, 0)

Line : 187
File : sessions.php