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 ('775a070d4e4b93c6f4075aa9ff9a2a5f', -1, 1575983030, 1575983030, '035f83d0', 18, 0, 0)

Line : 187
File : sessions.php