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 ('67bef4c92e1c3dbdf7a1bcdb7303fd0f', -1, 1571410239, 1571410239, '03e3f9ea', 54, 0, 0)

Line : 187
File : sessions.php