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 ('57ad9d0cd8e4cb50e69726ce0084a165', -1, 1558525053, 1558525053, '22e54cc1', 4, 0, 0)

Line : 187
File : sessions.php