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 ('37700dfb7d6f09b1e8a061fee3371deb', -1, 1542444080, 1542444080, '369f2c36', 0, 0, 0)

Line : 186
File : sessions.php