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 ('7df0bf83dd353fe46956574207d4b429', -1, 1422296649, 1422296649, '36a3704b', -1, 0, 0)

Line : 187
File : sessions.php