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 ('2bee25e0650ca8c24f418989ae5f2c65', -1, 1566789336, 1566789336, '22ec2692', 37, 0, 0)

Line : 187
File : sessions.php