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 ('0ab4e3b4fc381d2a344c57fad738a56f', -1, 1516396815, 1516396815, '36ea2d0a', 11, 0, 0)

Line : 187
File : sessions.php