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 ('bd99e6c45c3987d6b6ef029738f2ae6c', -1, 1539792531, 1539792531, '36c6d41e', -8, 0, 0)

Line : 187
File : sessions.php