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 ('d9bb4edfaca6f83661b0278bf3c97aa9', -1, 1558860977, 1558860977, '36a3147b', 0, 0, 0)

Line : 187
File : sessions.php