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 ('8f28e480025b4b752a5ae942155c52c9', -1, 1573567924, 1573567924, '12d0ba13', 5, 0, 0)

Line : 187
File : sessions.php