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 ('e2b2988c2466c426859b612696c25e02', -1, 1518930854, 1518930854, '36f25ecc', 14, 0, 0)

Line : 187
File : sessions.php