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 ('cfaf02bb99b39e30a5cae460e7c78005', -1, 1519239935, 1519239935, '36e22175', -6, 0, 0)

Line : 187
File : sessions.php