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 ('f885b49899e37816af64fd77f3a2ccce', -1, 1506106643, 1506106643, '36e13bf2', 14, 0, 0)

Line : 187
File : sessions.php