statx error

Mar 18 08:21:36  systemd[1]: Started hinsightd.service - hinsightd is a http/1.1 webserver.
Mar 19 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory
Mar 19 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory
Mar 20 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory
Mar 20 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory
Mar 20 09:08:21  hinsightd[1235077]: statx /var//avahi;65fa7d50: No such file or directory
Mar 21 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory
Mar 21 04:02:01  hinsightd[1235077]: statx /var/lib//status.tmp: No such file or directory

What causes such errors?