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 ('6ddad2aee11b5ad66c19a6ab33056e98', -1, 1529602784, 1529602784, '36901087', 0, 0, 0)

Line : 187
File : sessions.php