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 ('19dac22f8a26e5ef19550399f8dc936c', -1, 1519579911, 1519579911, '36534233', 11, 0, 0)

Line : 187
File : sessions.php