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 ('149097438831f3ea2610f5c9a8f5b19a', -1, 1524770331, 1524770331, '36e02ca8', -7, 0, 0)

Line : 187
File : sessions.php