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 ('51821a3a9e18c09b79ed607d5024d07c', -1, 1563915406, 1563915406, '36f2c129', 51, 0, 0)

Line : 187
File : sessions.php