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 ('f3ac34fe596a232e89265edee5a2d1e5', -1, 1537491789, 1537491789, '36c68e79', 14, 0, 0)

Line : 187
File : sessions.php