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 ('603630ed5f43f949c725e10020ed8cfb', -1, 1519359320, 1519359320, '365a773b', 0, 0, 0)

Line : 187
File : sessions.php