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 ('779f9263f41bb0d2f02041f638a2fce7', -1, 1516728193, 1516728193, '36ea0002', -9, 0, 0)

Line : 187
File : sessions.php