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 ('b70c78c45c03d8bd2779782507d93ba6', -1, 1524610009, 1524610009, '36a26906', 2, 0, 0)

Line : 187
File : sessions.php