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 ('65e4ed99facdde72c494f5884a3f0f13', -1, 1524532352, 1524532352, '6b1630f3', 15, 0, 0)

Line : 189
File : sessions.php