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 ('772923ac2c91bad05c456965144bd895', -1, 1529474253, 1529474253, '365147db', 18, 0, 0)

Line : 187
File : sessions.php