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 ('e82c7100c61ea114fc6b33330da11420', -1, 1519213055, 1519213055, '36c4d745', -4, 0, 0)

Line : 187
File : sessions.php