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 ('9134f5aa12d7e1aed6eb61ff97ed4eaa', -1, 1558844309, 1558844309, '369d3d44', 0, 0, 0)

Line : 189
File : sessions.php