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 ('17b09ad6e44e84f336a1cf8d1aabee46', -1, 1519098311, 1519098311, '321322ff', 8, 0, 0)

Line : 187
File : sessions.php